I find a lot of people comment about the hot summers, but it all depends on what you prefer. I'd prefer two or three hot months where I can still get out and around in the mornings and afternoon/evenings (walk or golf cart) than 4 or 5 months where I have to be concerned about ice on the ground and scraping it off my windshield while I heat up the car every morning.
The website for realtor Lyle Gant has a link on the weather which is interesting as well:
http://www.lylesellsfla.com/community_reports.shtml
If you're from the Northeast, I also looked up the average temperatures as well as record highs and was very surpirsed, comparing LI and Lady Lake:
Record High Temperatures:
June Lady Lake, FL 100 Long Island, NY 101
July 100 103
August 101 102
The numbers don't lie, and neither do the smiles on our faces ;D