pliny the elder at 2011-11-04 15:15:00:
I briefly met John back in the 80's when he was in the UK speaking at a Spike & Mike animation festival, and I think Tin Toy had just come out (also, Pixar had just gotten out of the hardware business at that point, and the company I worked for was talking to them).
In contrast to every other computer animator I knew back then, he was 100% focused on story. You only have to look at any of those early shorts like Luxo Jr and Andre & Wally B, to see how that's true. Luxo Jr is downright whimsical, which is hard enough for live actors to pull off.
When you watch one of their movies, you'll see that on-screen, Pixar is almost always modest wrt their technological capabilities, to the point where you have to know a thing or two to appreciate the difficulty of what they're doing (the opening shot of Bug's Life was technologically amazing for the time). It's that Italian word again, Sprezzatura.
The guys at Lucasfilm, otoh, are not shy about showing off (the spaceship flying through clouds at the start of Clones, for example). In a nutshell, that's the difference between Lucas' good computer animation, and Pixar's great animation.