I think that the end of February is a wonderful time of year to go. The crowds are fairly low, and the weather is usually gorgeous- it's not too humid yet but it's warm enough to wear shorts or a lightweight shirt and pants.
I agree. We went Feb. 4-8 and had NO problems. Only issue was cheerleaders, and they were cordial and friendly (and also too busy to attend the parks!).
Before school-aged children we went 2nd week of October and it was absolutely perfect weather with next to no rain!! We didn't know about mnsshp back then either. I'd love to go back in Oct now.