Crash is horribly melodramatic and unsubtle, it beats you over the head with its message to the point of tedium. As for Braveheart, hilariously anti-English, homophobic, messes with history beyond the point of 'I'll let this slide because it's a film', and has the nauseating sight of Mel Gibson copping off with not one, but two much younger women. And it beat Babe, which is especially unforgiveable.
And The Hurt Locker will be forgotten in 5 years? I'd love to have your psychic abilities. I think it'll go down as one of the best films made about war.
Saying 'Film/Band/Singer X will be forgotten in 5/10/20/100 years' is a daft argument, you have no way of knowing such a thing.
And animation is filed alongside comedy/sci-fi/fantasy - the Oscars will usually ignore it for the big prizes as they're so dull in their choices.