There is an interesting effect at the top where the character with the highest win% (Symmetra) comes in third in the Elo rankings due to a lack of overall matches. Lucio is played quite a bit more than Symmetra. Over time I’d expect Torbjörn to grab to the top spot, unless he gets hit with a nerf.
In other news, Blizzard: Show Mercy some Mercy. She needs to be more effective in her support role.