TF2! The Witcher! World in Conflict!
TF2 - Me too.
The Witcher - Heard it was so-so, not great.
World in Conflict - Heard good things, little bad.
Hellgate is not a bad game, the buisness model is and I think people blind themsleves because of it. I will admit I feel a little guilty about supporting a Dev house that is ok with ingame ads. But if you (or anybody) liked Diablo 1 or 2, then I can't see why this game is so bad, it's Diablo 3.