U of M was very meh to me, so spread out.
Mizzou is VERY underrated, I had a BLAST there.
Colorado is very very cool, Boulder may not be for everyone, but overall, very cool spot.
Colorado State was pretty cool
U of A is amazing, if you get the chance, you need to visit the university area, and just the city as well. Tucson is very cool.
ASU, is not great, like at all. the buildings suck. Campus just kinda sucks in general, Tempe the city is cool.
Smaller Schools:
Mankato, very amazing, i'm biased, but i like that the college is on top of the hill, and the bars are downtown and all close together.
St. Cloud, just don't bother, that place sucks.