Eh, 2008 was an alright year for movies.
I would have to agree with you on the "Hancock". I loved that movie.
There was couple of other good movies like "Hitman" "Wanted" etc,
I'm not sure if this counts for 2008, though it did come out in 2008 technically. "Marley and Me". My wife and kid went to see it. We had read the book, and have a Marley named Derby, which is not far off from real thing.
For me, that was the best I've seen. Book was better of course.
I was really surprised with IronMan, I did not expect it to be as good as it was. The Dark Knight was a close runner up though.
I was disappointed with Babylon AD, I was expecting a lot more action.