Most of these are not quite games I "hated" per say, but they are games I found to be "meh" at best, particularly when compared to the more popular opinions of them.
Borderlands Series - Good with friends, but otherwise I find that it becomes a daunting grind someway into it. Now I know getting your friends together is a way to play it but I don't think this excuses it for me.
Quite a few Valve titles - I have nothing against Valve as a company, as I hold them in high regard for their relationship to their fanbase and the way they do their business, but often I find their games are quite overhyped and while still fun they ultimately don't leave a lasting impression on me and I often only find them fun in the right mood, often for different reasons depending on which game.