I'm not one for the FPS genre in general. There are currently only two FPS games that I have really enjoyed, and that being Goldeneye and Timesplitters 2. And the main reason I like Timesplitters is because it feels so much like Goldeneye, so...
GTA was alright, fun for a while. Definitely should not have sold so much.
I also find every Blizzard game other than Starcraft overrated. I hate Blizzard for not making us a REAL Starcraft sequel, the ugly mess that is Starcraft Ghost doesn't count.
I'm also not one for sports, nor EA in general. I also hate the Sims.
That should cover most of it. Other than sports games I'm generally open-minded about things.