Given the data on Florida, and the fact that pretty much everyone else in the north east would head there too, I dunno how great Florida would be either. Supposedly the Seminole indians, indigenous to central and southern Florida have legends in their lore of the everglades freezing over and and "white rain" falling every year for a couple of decades. Climate wise, the Pacific NW wouldn't be bad if not for the fact that Fukushima is going to continue belching radioactive cesium into the atmosphere and bleeding it into the Pacific Ocean for the next couple centuries. They are already reporting mysterious birth defects in central Washnington and, even more ominously, the three main orca pods in Pugeot Sound haven't had a live calf birth in 4 years (usually there are a handfull every year). Of course nobody will attribute any of that to radioactive cesium going up the food chain and aggregating in the salmon, but see if cans of tuna from pre-2011 don't turn into collector's items.
I'm sticking with the desert SW/southern rockies myself. This last summer was super mild here with the fewest number of tripple digit temperatures I can remember, and we've had enough rain this "winter" (it's never really winter here in the sense of having months and months of cold) that wild grasses are actually growing sufficiently to be a nuisance.
Back when I was in HS it NEVER snowed here. It has snowed here, with at least trace accumulations, four of the last five winters.