I'm playing Star Wars: the Forced Unleashed now and at first, it seemed pretty fun. However, after a while, the controls started to feel clunky and unresponsive. On top of that, it's painfully repetitive. I see myself finishing it, though, because I've become a Star Wars nut over the summer. It's serving to satiate my Star Wars addiction because my KotOR keeps freezing at this one spot.
Another game off the top of my head is Kingdom Hearts 2. After a few worlds, I decided I was extremely bored with it, but trudged on just to see the cut-scenes and to fight Sephiroth.