Is your focus on composition/performance? I've heard of CalArts' program but didn't know that Oregon even has one but my focus is computer music research not comp/perf. If you are interesting in opportunities to collaborate like you said then CalArts sounds like the better option based on location. Eugene, OR is an awesome little college town but in a rather isolated location. If money is a big factor then it will be important to wait until you have both funding offers in writing so you can accurately compare them. Good luck with your decision, I know how hard it can be to make one.