Fallout 3 definitely. It made me think WRPGs just weren't for me for a long time.

FFVI and Xenogears were games I wanted to love like so many others do but just ended up liking.

I understand where people are going with DQVI. I'm a huge series fan and it kept the new ideas coming but I just wasn't taken by it and it remains unfinished. I think DQV was just too big of a game and too hard an act to follow.

As a huge shooter fan I've tried to understand Halo in its many iterations but have never wrapped my head around its peculiar design decisions or controller layout. I did like Halo 3 multiplayer initially when it launched and had a couple good games of Reach.

Recently tried AI Wars and despite its ambitious promise, I don't think it's gonna work out...