Well, I would have to say Prototype. I loved the game but there were far too many explosions which ruined the fighting systems and I thought that the funnest attacks were pretty much useless, and no attack is really used much after you get the blade arm drop thingy. Those are things in games which I hate. And because once you finish the game, it doesn't matter how many hives and stuff you destroy, they always come back, which pissed me off cause I just wanted to free roam with being tackled by hunters and shot down by tanks, as it really ruins my murderous rampages.
So, I loved the game but there were so many things that just ruined the game.