Enterprise. They're the biggest for a reason. Less bull shite and hidden fees than a fly-by-night operation like Fox Rent A Car (personal experience).
I flew into Tampa last week with a reservation for a full size ($18 a day) and casually asked the desk girl if they had a Wrangler available. They did, and gave it to me for $35/day - half the normal price - with no negotiation. Then again, I'm very good looking...
Just checked Enterprise' site: they have cars from $31/day.
This post was edited on 6/18 at 12:43 pm