CU alumni here...
1.) definitely room with somebody, don't room alone
2.) don't room in hallett, nothing wrong with the diversity program but unless you fit into one of those categories, you'll be better off elsewhere
3.) my votes are for chey-ho, baker, libby, sewell...any of the ones on the parameter of farrand field are solid locations if you can get it there
-farrand is good too, but if you're a business major you can't room there. have to be liberal arts i think?
I was in willville which honestly was fun as hell, even though it's a little bit of a pain to take the bus to and from campus.
PM me with any questions! Good luck man