I prefer to fly at night, because in FLA the afternoon T-storms have gone, and the air is soooooooooo much smoother, and there's no a/c in the airplane, so it's alot cooler in the cabin..........
Daytime flying in summer in FLA, gets bumpy until you climb to around 6000-8000 feet......and then the clouds start building up so you are looking to land around 1-3pm before the big *** t-storms start.
I also agree that seeing the cities and the airports (especially if they have an ILS) are easier. Watching the lights come on when you click the radio was the "coolest" thing for me on my 1st night flight.