TBH i don't think ive watched all of any of the 3
i know Ive seen parts of 3 because its been on TV recently. besides that im pretty sure i haven't seen any of the others. i prob saw parts of 1 many many years ago but i have no knowledge of 2
actually looking at the list of Pixar movies the only one ive watched start to finish is Up
most of them i have seen 0 minutes of
Toy Story
Good movie. Cinematic milestone.
A Bug's Life
Great movie for kids. Some laughs for adults. Vastly improved visuals over the previous movie. Some of the best character design with the villains (grasshoppers). Randy Newman's songs bring this one down a bit.
Toy Story 2
Good story. Funny for kids...and even emotional for adults.
Monsters, Inc.
Good story for kids. Adults won't want to watch it repeatedly.
Finding Nemo
Good story for kids. I have no idea why so many adults love this one and say it's "Pixar's best."A few laughs for adults. Mostly kids' stuff.
The Incredibles
It's funny the first couple times. Some jokes and references for the adults. Can't really stand watching it anyore because the "dysfunctional family" scenes are too annoying.
Cars
Worse reputation than it deserves. Funny characters. Lots of gags that the kids won't understand. Pixar's most profitable movie because kids simply can't get enough of the merchandise.
Ratatouille
It's good to watch a couple times. CG food never looked so tasty!
WALL-E
The first half of the movie is awesome. Then it turns into kids' stuff.
Up
First act is the best ever. I couldn't stand the rest of the movie. Kids will love it.
Toy Story 3
Great for kids and adults. Very well-crafted story.
Cars 2
Not as bad as some people say. Mostly a string of references to spy / espionage movies and some funny culture shock jokes.
Brave
Absolutely terrible. Even ignoring plot holes, the story is the most cliched, weak plot ever. I can't believe Pixar made this. That said; it's OK for young children, but an adult might not be able to tolerate it.
Monsters University
Haven't seen it. Has potential.