Like LibbyJeanne said, it really depends on what you want to do in the future. If you want to get a masters, I'd say get your bsn now instead of the adn.
CSN is a good school, I went there for a CNA and I talked to a lot of the RN students, the positives of CSN's program is that you have smaller classes, and from what I was told, more clinical experience. My friends that went to csn felt more prepared when they started to work than my friends who graduated from UNLV. Of course, each teacher is different and no one is going to get the same exact experience.
And I'm not saying UNR or UNLV don't prepare you as well, but the smaller classes do have their benefits, such as some one on one time with the teacher, more advice on what you need to improve because of the teacher's extra time, and practice of your skills.
Right now I'm looking at going to Touro University after I do the pre reqs at csn because I want to get an Msn. If you don't want a bsn or msn, then I'd say stick with College of Southern Nevada.
Hope that helps a little bit