[The-Jack-DeCk]

Wait, found one.
Spirited Away.

I think that was the first movie I ever saw, but I don't remember. If it was, I remember that I hated it!

[kingofturves]

Gosh I have quite a large collection of animated films, quite difficult to decide which is best.

Yep I would definately rank the works of Hayao Miyazaki of Studio Ghinli as amongst my favourate animated movies; Spirited Away and Laputa Castle in the Sky especially. Probably my favourate animated films to date.
Someones' already mentioned Shrek and Shrek 2.
Hmm, PG 13, well I can't very well include South Park the movie then...?
Lets see to have favs which no one else has mention yet I would include; Antz
How to train your Dragon

Tough to decide which is the best out of that six but I would probably go with Laputa Castle in the Sky