What tank to use

[quote=MDC]I have both Shen and Amumu, I've learned Shen quite well or like to believe, ofcourse there is room for improvement. I tried Rammus once, not someone I'd really like don't know why. Amumu I see myself playing in near future, but he's so reliable on good team coordination that it's hard to play without even small premade. Thinking of acquiring Cho before whammus though.[/quote]