I visited ERAU Daytona last June, and ASU Mesa Gateway on April 3. I found the weather in Arizona to be 10x more pleasant than the weather in Florida which had me sweating like a pig the moment I stepped off the plane. With Arizona heat you don't even feel it.
Plus Florida gets a lot more thunderstorm activity which would certainly screw with your lessons occasionally, especially during hurricane season.
Also curious did you consider ASU? I hated Riddle because the campus was so damn small with no girls at all. ASU Poly has plenty of girls and is plenty big (still not Tempe though, in both these ways) but still its better than Riddle where a girl is as common as a solar eclipse. I also liked how ASU gives you the more traditional college life with it being a D-1 school if your into sports or whatever.
Good Luck!
Speed