Better timeshares in SW Fl, or SE Fl for that matter, are seldom available for dates after 12/15, between 12/15 and 4/15 m/l. Those you have to start searching for two years in advance.
I won't bother to go check what's available at this late date cuz I already know.
I search Resorts on the Beach on RCI every morning. One of my start dates is 12/28/06, for the next 5 weeks. This morning of the 38 resorts left, 34 are in SE FL or the Panhandle. I believe a couple of the others were lesser resorts in SE Fl.
IN SW Florida, the only resort still available is Lehigh, for a 12/30 start date.
We have been going to FL during bowl season for about 15 years. The roads are a madhouse heading down, depending on what teams are going and what days you are traveling. Bumper to bumper, all lanes, 85-95 miles an hour. If you wish to drive the speed limit to 5 over, it's best to stay in the far righthand lane, where you have to contend with the hundreds of snowbirds in their motor homes and travel trailers. They normally head down after spending Christmas with the grandkids up north.