Those reasons aren't even relevant to me.
Keyboard and Mouse > Gamepad.
PC is more competitive, in league play and player skill.
Not being a prepube consolefag like lex.
I'd love to see some compatibility though. I hope PC and console players can play together at some point in the future. I can't wait until the PC teams just utterly destroy the console teams = P
consoles are good for fighter games, sports and racing games...
PC is for RTS/FPS and MMO