Le Cellier, definitely. It's my favorite TS restaurant at WDW. For dinner, the filet. For lunch, the prime rib sandwich (a newly discovered favorite of mine!). And definitely ask for extra pretzel bread! It's "to die for!"
For CS at Epcot, I really like Sunshine Seasons. Lots of different choices, enough to please anyone. I got the rotisserie chicken/mashed potatoes/carrots in October - it was great! My friend got the chicken caesar salad, which was excellent. It's nice to be able to get pretty healthy food (not burgers and fries) that are such good quality.