Welcome back Pinky, havent seen you in a long long time!
Anyways I thought T3 was really good. In fact, I think it was a really good sequal. They could have done a really poor job, and they didnt. They ended up making a really good sequal and the end sets up perfectly for T4.
I like them all equally, but probably T2 is still my favorite just because of T100 vs Terminator. Although T3 like I said comes really close to topping it.
I would give it 5/5 stars, and will definately add this in my DVD library with the other two films.