Mr. Negative Man!
Halo isn't THAT bad. It did get repeditive a couple of times, but I was too busy having fun playing co-op with a friend that I didn't really care. The physics aren't screwy.
The graphics are good for a console. Lots and lots of bump-mapping, specular highlights, and dynamic lighting. I can't remember if there are realtime shadows or not (it's been a while since I've played it).
If I had to be stuck with a console and no PC, I'd either pick Goldeneye on N64, or Halo on Xbox.