If you aren't set on having TS (my kids prefer to spend more time playing around DTD) we like Earl of Sandwich or WPE. For TS we like Raglan Road with the kids (if the service moves fast enough) or WPC . My kids were always terrifified of RFC at that age and it's not my favorite food.
What's WPE? I heard Rainforest wasn't too great, but DS 6 loves loves loves jungle stuff (his room is a jungle room). Maybe that would be a good snack place? Dessert only? Maybe the one at the AK? Earl of Sandwhich...I believe I've heard great things about that.