<p>Funny, because I always viewed Berkeley as the smartest UC school, followed closely by UCLA for mathematics. </p>
<p>USAMO is much harder than any other Olympiad. The others have about 20,000 kids take test while the AMC has 400,000 students, hence 1 in 800 for the top 500, as opposed to top 400 of 20,000 or 1/50, which is a mere 2% compared to Math’s 0.125% :D</p>