Monsters Inc i find it more entertaining
I'd say Monsters Inc. but I felt a string connection with Jessie when I was a kid, so I'll be going with that one.
The last Monsters Inc movie was awesome. Miles better than Toy Story 3 I thought.
I loved Toy Story 2 though, the part at the end in the airport was great. It was like a proper action movie, with Buzz saving the day. It reminded me of Die Hard 2 for some reason