Looks like Alistar is pick/ban in competitive play

There would probably be too much backlash from the Pro Scene. I doubt anything major will happen until after the season. (that was their excuse for not nerfing Lee sin)

Alistar's kit is So Ult heavy. He gets the tankyness of a True tank (if only temporary) With out any real items. He isn't going to be batted down with a simple numbers nerf.