here's some questions for the OP, are you a super chill guy? is money an issue? what majors are u interested in? city? suburbs? or small town?
I applied to MSU, boulder and CSU. got into all three, boulders has the hardest "requirements" but i have no idea why b/c the kids who go there are pretty average in the intellectual dept. I went to MSU for a year. My brother goes to CSU, and I've visited boulder about 10 times in the last 5 years. MSU is pretty similar to CSU, I had a hard time choosing between the two. Chose MSU b/c they have a ridiculous architecture school, but ended up moving and ski bumming after a year anyway.
A year at MSU, 2 years of ski bumming, a degree from CMC, and working on a mech eng degree later, I'd choose CSU.
Go visit them all if you can, aesthetically you'll like boulder the best, but there's a lot more to college than a pristine campus.