CSU San Marcos vs. CSUN versus Chico?

[Bargy]

Of the acceptances I've had, I've narrowed things down to these three (San Marcos, CSUN and Chico.)  I'm still waiting to hear from SJSU, SFSU and Sac State, and am wait listed for SDSU.  Of the three I've been accepted at, any advice for helping me narrow it down?  I like San Marcos a lot, but it is a very new program (started 2013) and won't be accredited until summer 2016.  Also, do people accept offers then change their minds when a later offer comes in which they prefer?

Thanks for your help!