Wellllll...I kinda agree with Ron...but, then, I'm pretty partial to both Toy Story movies (and very excited about the prospect of TS 3). I agree Ratatouille surpasses many of the subsequent Pixar flicks. But, I definitely feel it deserves additional viewings.
But it's tough when your initial effort is a film as good as Toy Story...and then it's sequel (which I've always heard was meant to be a Direct-to-video effort) turns out to be arguably as good. It's hard to keep going up.
But the Pixar folks always do quality work and I find that by revisiting some of the stories I am drawn into them more. Maybe I'm blown away by the animation at first, I don't know.
EDIT** Ron: My thought was that Brett was disagreeing with Ron's opinion of the Pixar canon.