In my opinion The Cheesecake Factory has the best lettuce wraps in the world. PF Changs comes in a close second. Homemade lettuce wraps, third place. I think the key is to marinade the chicken, green onions and water chestnuts just long enough to absorb the flavor, but not too long that the marinade becomes over powering.
If you head over HERE you will find a great recipe should you want to make the marinade from scratch. The Handsome Husband, The Girl and Monkey Boy each ate 3 wraps a piece. Watch out… These babies are addicting!