We've done Thanksgiving for the last 5yrs, done MK Wednesday not bad if you plan and we hit MK Friday till 2pm last year. Got my youngest on Space Mtn. numerous times those days. Go early. We do AK T-giving day and always ride EE numerous times.
As for dinner on Thanksgiving, we skip the turkey(the guys think the only turkey worth eating is mine). We've done Hoop De Doo, Raglan Road or hit Wolfgang Puck's Express, then the Cirque show.
Only thing with T-giving is the weather, we've gone from perfect FL weather to freeze warnings over those 5yrs. Packing has been fun.
Skipping it this year to go in early November to hit F&W. Darn I'm going to have to cook T-giving dinner for the 1st time since 2005.