Haas at Berkeley is ranked 7th in the nation by US News & World Reports.
Anderson at UCLA is ranked 14th in the nation by USN&WR (with Yale and ahead of Cornell for all the east coast snobs).
It's interesting b/c Business Week and Forbes reverse the two and rank Anderson ahead of Haas.
UC Davis and UC Irvine are also ranked in the top 50.
What it boils down to is that getting into either Haas or Anderson is a HUGE accomplishment.
Here's a really cool site that compares the different rankings of business schools.