We are arriving on May 6th. What is it like? How are the crowds? We have been there in October, December, and February and seem to like February the best. We live in Pennsylvania and a week in the Florida warmth in the middle of winter is great.
I'll agree with the potential for hot and muggy. It's usually in the low-to-mid 80's, humid, and the usual chance for afternoon thunderstorms. Last May, we had rain one afternoon of our whole trip (first week in May). The May prior to that, there were a few days of rain.