If you're planning on committing a crime, pick an Arizona area that isn't Mariposa County. Tent City sucks, but the Arizona State prisons are fairly laid back. New Mexico isn't that bad, either.
If you're a non-violent drug offender, Texas isn't that bad. If you're a violent offender or a child molester, the prisons you're sent to are pretty scary.
Avoid breaking the law in California. Their prisons make Texas look enlightened.
Ditto Florida. Ugh.
Illinois, New York, Pennsylvania, New Jersey, also bad places to go to prison.
But, if you're serious about a life of crime, go to Canada if you're broke, Mexico if you have money. Canadian jails and prisons are more "Northern European" style in set up and philosophy, and Mexican jails are FUN if you have bribe money (I know the last one from experience).