The only BBQ I've tried was Flame Tree at AK and I love that place. We always go there every time we go to Disney. I like the smoked chicken and the people I'm going with always enjoy the ribs.
I've heard nothing but good things about Flame Tree, but haven't tried it. Probably will next week when we're there. We almost always hit HDDMR and have the ribs and chicken and usually the meat is falling off the bone!!! Whispering Canyon is another good bet to get BBQ options for sure. We're staying there and when you walk outside and smell the smokehouse...it's almost heavenly!