I have to be honest, I lost interest with the (for me) broken 2010 version. Patches failed to fix my “three players off injured in the first half of every single match despite everyone having 100% fitness to begin with” problem.
I tried 2011 for a while but the press conferences introduced a few years back continued to bug me and the formation/tactics system while interesting is almost too in-depth and fiddly. Quality players would become useless if you gave them a slightly ambiguous role or would completely fail in the ‘wrong’ formation as though they'd forgotten how to play football completely. I understand it to the point of it making sense but simply switching, for example, Barcelona's formation caused Xavi all kinds of fail.
To that end, I'm not really excited about 2012. I miss the older games…especially CM 97/98 which I spent hundreds of hours on.