1. Win Rate per Champion (highest to lowest):
| Name | Win % |
| Maokai | 63.65% |
| Rammus | 61.84% |
| Poppy | 60.60% |
| Singed | 59.84% |
| Sona | 59.33% |
| Warwick | 58.95% |
| Teemo | 58.60% |
| Dr. Mundo | 58.51% |
| Katarina | 57.73% |
| Xin Zhao | 57.30% |
| Swain | 57.15% |
| Amumu | 56.95% |
| Irelia | 56.72% |
| Ryze | 56.43% |
| Jax | 55.41% |
| Fiddlesticks | 55.04% |
| Heimerdinger | 55.00% |
| Akali | 54.94% |
| Fiora | 54.51% |
| Garen | 54.51% |
| Master Yi | 54.20% |
| Fizz | 54.16% |
| Alistar | 53.98% |
| Shaco | 53.93% |
| Diana | 53.93% |
| Wukong | 53.76% |
| Volibear | 53.48% |
| Udyr | 53.39% |
| Zyra | 53.21% |
| Leona | 53.17% |
| Karthus | 52.79% |
| Vel'Koz | 52.73% |
| Malphite | 52.38% |
| Vi | 52.35% |
| Brand | 52.32% |
| Annie | 52.22% |
| Hecarim | 52.11% |
| Mordekaiser | 51.56% |
| Olaf | 51.46% |
| Jayce | 51.15% |
| Vladimir | 51.04% |
| Skarner | 50.99% |
| Pantheon | 50.66% |
| Talon | 50.39% |
| Darius | 50.34% |
| Nidalee | 49.37% |
| Jarvan IV | 49.35% |
| Gragas | 49.33% |
| Tryndamere | 49.01% |
| Morgana | 48.93% |
| Lux | 48.68% |
| Ahri | 48.64% |
| Karma | 48.56% |
| Rengar | 48.54% |
| Shyvana | 47.96% |
| Kha'Zix | 47.88% |
| Quinn | 47.85% |
| Kassadin | 47.58% |
| Riven | 47.46% |
| Gangplank | 47.45% |
| Ziggs | 47.27% |
| Kayle | 47.25% |
| Gnar | 46.85% |
| Cho'Gath | 46.50% |
| Blitzcrank | 46.38% |
| Twisted Fate | 46.22% |
| Lulu | 46.04% |
| Nocturne | 45.99% |
| Lee Sin | 45.94% |
| Orianna | 45.86% |
| Yasuo | 45.78% |
| Ezreal | 45.20% |
| Renekton | 44.98% |
| Syndra | 44.74% |
| Nunu | 43.71% |
| Zilean | 43.69% |
| Jinx | 43.68% |
| Kennen | 43.64% |
| Vayne | 43.42% |
| Miss Fortune | 43.32% |
| Xerath | 43.30% |
| Zed | 43.27% |
| Lucian | 42.33% |
| LeBlanc | 42.20% |
| Caitlyn | 41.97% |
| Cassiopeia | 41.37% |
| Tristana | 40.85% |
| Twitch | 40.22% |
| Veigar | 38.83% |
You may notice some of the champions are missing from this list. This is because I was not able to get at least 1000 games of this champion in ~60k games. Yes, I am aware that the same champion can be on both sides of the game; those games are filtered out in the computation for win rates.
2. Champion Popularity (highest to lowest):
| Name | Popularity |
| Kha'Zix | 32.90% |
| Katarina | 31.24% |
| Yasuo | 29.27% |
| Teemo | 28.60% |
| Master Yi | 26.30% |
| Fizz | 23.78% |
| Akali | 23.49% |
| Ezreal | 22.33% |
| Nidalee | 21.60% |
| Riven | 19.36% |
| Zed | 19.14% |
| Lee Sin | 17.84% |
| Jax | 16.50% |
| Cassiopeia | 15.82% |
| Renekton | 15.58% |
| Xin Zhao | 15.16% |
| Wukong | 14.73% |
| Gnar | 14.68% |
| Shaco | 14.07% |
| Rengar | 13.95% |
| Talon | 13.91% |
| Lux | 13.36% |
| Rammus | 13.30% |
| Fiora | 13.17% |
| Heimerdinger | 12.88% |
| Vayne | 12.77% |
| Poppy | 12.15% |
| Xerath | 11.81% |
| Pantheon | 11.71% |
| Garen | 11.03% |
| Jarvan IV | 11.02% |
| Darius | 10.66% |
| Tryndamere | 10.58% |
| Singed | 10.27% |
| Alistar | 9.69% |
| Blitzcrank | 9.69% |
| Dr. Mundo | 9.54% |
| Tristana | 9.49% |
| Warwick | 9.49% |
| Maokai | 9.43% |
| Udyr | 9.02% |
| Amumu | 8.90% |
| Ahri | 8.89% |
| Sona | 8.88% |
| Ryze | 8.63% |
| Fiddlesticks | 8.29% |
| Lucian | 8.26% |
| Jayce | 7.70% |
| Orianna | 7.48% |
| Hecarim | 7.34% |
| Gangplank | 7.31% |
| Vi | 7.20% |
| Malphite | 7.18% |
| LeBlanc | 7.08% |
| Zyra | 6.95% |
| Kayle | 6.74% |
| Irelia | 6.72% |
| Kassadin | 6.68% |
| Karma | 6.61% |
| Morgana | 6.53% |
| Swain | 6.13% |
| Zilean | 6.07% |
| Ziggs | 6.02% |
| Jinx | 5.76% |
| Lulu | 5.75% |
| Leona | 5.74% |
| Volibear | 5.73% |
| Annie | 5.71% |
| Diana | 5.54% |
| Vel'Koz | 5.31% |
| Kennen | 5.27% |
| Twitch | 5.24% |
| Brand | 5.02% |
| Olaf | 4.56% |
| Miss Fortune | 4.46% |
| Cho'Gath | 4.36% |
| Nunu | 4.23% |
| Shyvana | 4.21% |
| Twisted Fate | 4.09% |
| Caitlyn | 4.06% |
| Karthus | 3.95% |
| Nocturne | 3.87% |
| Vladimir | 3.83% |
| Gragas | 3.72% |
| Syndra | 3.65% |
| Quinn | 3.64% |
| Veigar | 3.64% |
| Mordekaiser | 3.42% |
| Skarner | 3.36% |
| Shen | 3.33% |
| Soraka | 3.32% |
| Nasus | 3.28% |
| Trundle | 3.25% |
| Braum | 3.23% |
| Aatrox | 2.90% |
| Ashe | 2.81% |
| Sivir | 2.73% |
| Janna | 2.62% |
| Rumble | 2.51% |
| Lissandra | 2.46% |
| Malzahar | 2.44% |
| Nautilus | 2.40% |
| Kog'Maw | 2.36% |
| Sejuani | 2.30% |
| Evelynn | 2.30% |
| Sion | 2.11% |
| Galio | 2.08% |
| Yorick | 2.08% |
| Anivia | 1.86% |
| Thresh | 1.76% |
| Viktor | 1.75% |
| Draven | 1.64% |
| Elise | 1.62% |
| Zac | 1.60% |
| Nami | 1.60% |
| Graves | 1.55% |
| Corki | 1.48% |
| Taric | 1.30% |
| Varus | 1.27% |
| Urgot | 1.00% |
3. Side advantage
| Side | Win % |
| Blue | 51.05% |
| Purple | 48.95% |
EDIT: more data and more (200k) games!
| name | Win Rate | Popularity |
| Maokai | 63.60% | 11.19% |
| Rammus | 60.97% | 17.12% |
| Sona | 59.75% | 13.26% |
| Taric | 59.75% | 2.31% |
| Singed | 59.28% | 12.28% |
| Poppy | 58.93% | 15.43% |
| Teemo | 58.64% | 30.42% |
| Warwick | 58.31% | 12.36% |
| Dr. Mundo | 58.09% | 11.38% |
| Katarina | 57.10% | 21.05% |
| Xin Zhao | 57.07% | 17.49% |
| Swain | 56.77% | 6.93% |
| Amumu | 56.11% | 10.40% |
| Yorick | 56.04% | 1.06% |
| Irelia | 55.95% | 7.27% |
| Ryze | 55.41% | 9.38% |
| Fiora | 55.28% | 14.25% |
| Jax | 55.26% | 17.01% |
| Akali | 54.61% | 14.17% |
| Leona | 54.42% | 6.81% |
| Heimerdinger | 54.42% | 13.92% |
| Wukong | 54.38% | 15.27% |
| Diana | 53.94% | 6.39% |
| Trundle | 53.74% | 3.62% |
| Fiddlesticks | 53.49% | 9.55% |
| Master Yi | 53.39% | 20.23% |
| Shaco | 53.30% | 16.49% |
| Garen | 53.21% | 12.57% |
| Fizz | 53.06% | 21.19% |
| Alistar | 52.91% | 10.70% |
| Vi | 52.77% | 8.05% |
| Vel'Koz | 52.68% | 5.76% |
| Kog'Maw | 52.67% | 2.81% |
| Volibear | 52.46% | 6.88% |
| Udyr | 52.44% | 9.53% |
| Brand | 52.26% | 5.63% |
| Annie | 52.18% | 6.53% |
| Karthus | 52.02% | 4.75% |
| Malphite | 51.76% | 8.49% |
| Mordekaiser | 51.64% | 3.91% |
| Galio | 51.34% | 2.35% |
| Zyra | 51.31% | 7.16% |
| Jayce | 51.10% | 7.78% |
| Hecarim | 51.00% | 7.34% |
| Darius | 50.90% | 11.49% |
| Olaf | 50.65% | 5.44% |
| Pantheon | 50.48% | 12.43% |
| Soraka | 50.38% | 3.95% |
| Talon | 50.33% | 12.91% |
| Malzahar | 50.29% | 2.74% |
| Sion | 50.02% | 2.92% |
| Vladimir | 49.80% | 3.99% |
| Sejuani | 49.65% | 2.81% |
| Skarner | 49.64% | 3.98% |
| Urgot | 49.64% | 1.11% |
| Janna | 49.37% | 3.06% |
| Rengar | 49.05% | 13.54% |
| Morgana | 49.04% | 7.28% |
| Karma | 48.90% | 6.63% |
| Tryndamere | 48.81% | 11.33% |
| Lux | 48.81% | 14.42% |
| Rumble | 48.65% | 2.56% |
| Jarvan IV | 48.54% | 10.29% |
| Ahri | 48.50% | 8.87% |
| Elise | 48.18% | 1.73% |
| Quinn | 48.13% | 3.49% |
| Viktor | 48.07% | 1.90% |
| Nidalee | 48.05% | 20.08% |
| Gragas | 47.99% | 4.14% |
| Braum | 47.98% | 3.76% |
| Shyvana | 47.87% | 4.54% |
| Gangplank | 47.86% | 9.03% |
| Kha'Zix | 47.75% | 25.06% |
| Riven | 47.45% | 16.49% |
| Shen | 47.21% | 3.89% |
| Gnar | 46.89% | 13.23% |
| Kassadin | 46.83% | 6.91% |
| Nautilus | 46.75% | 2.73% |
| Blitzcrank | 46.55% | 11.18% |
| Lee Sin | 46.50% | 15.70% |
| Kayle | 46.40% | 6.99% |
| Ziggs | 46.39% | 5.88% |
| Yasuo | 46.28% | 21.03% |
| Cho'Gath | 46.07% | 4.64% |
| Nami | 46.03% | 2.05% |
| Lulu | 45.81% | 5.45% |
| Anivia | 45.73% | 2.48% |
| Miss Fortune | 45.59% | 5.82% |
| Corki | 45.51% | 1.73% |
| Orianna | 45.47% | 6.55% |
| Ezreal | 45.29% | 21.78% |
| Twisted Fate | 45.19% | 4.37% |
| Zac | 44.95% | 2.34% |
| Nasus | 44.66% | 3.49% |
| Vayne | 44.48% | 12.03% |
| Kennen | 44.15% | 5.54% |
| Lissandra | 43.99% | 2.43% |
| Nocturne | 43.88% | 4.15% |
| Renekton | 43.74% | 11.69% |
| Sivir | 43.66% | 3.07% |
| Jinx | 43.42% | 6.53% |
| Xerath | 43.00% | 10.12% |
| Zed | 43.00% | 16.36% |
| Syndra | 42.93% | 3.07% |
| Draven | 42.90% | 1.96% |
| Evelynn | 42.86% | 2.67% |
| Caitlyn | 42.79% | 4.29% |
| Zilean | 42.71% | 5.80% |
| Varus | 42.56% | 1.80% |
| LeBlanc | 42.41% | 7.29% |
| Lucian | 42.09% | 7.67% |
| Cassiopeia | 41.98% | 10.49% |
| Graves | 41.77% | 1.72% |
| Nunu | 41.56% | 4.54% |
| Ashe | 40.61% | 3.63% |
| Tristana | 40.25% | 9.11% |
| Twitch | 40.23% | 5.43% |
| Veigar | 39.80% | 4.06% |
| Azir | 39.43% | 0.26% |
| Aatrox | 38.62% | 3.53% |
| Thresh | 36.18% | 2.02% |
