For a Phd in fiction, does anyone know the acceptance rates for these programs?
University of Georgia
Georgia State University
University of Denver
University of Houston
University of Utah
University of Southern California
Any insider info on applying to these programs?
Are you sure you mean a Ph.D. in Fiction, not an MFA in Fiction? So far I've never heard of a Ph.D. in Creative Writing, at least in the U.S.--the MFA is the termial degree--and if some school on the web's trying to catch your eye with the words "Ph.D. in Creative Writing" it's probably just a Ph.D. in English with a creative dissertation. In any case, why don't you visit the program websites and look to see if they specify acceptance rates? If not (and doing the research for my database has shown me that programs usually don't) get in touch with the program office by e-mail or phone--I'm sure the contact information will be there on the site.
If someone visiting this blog has attended one of these programs, he or she might be able to give you its acceptance rate or some insider info on applying to that particular program, but it's not likely that a random site visitor will have such particular information. For accurate data, the best thing to do is to contact the programs themselves.