So far I've used Apple, Cherry, and Peach and Cherry is my favorite if I just had to pick one. Amazing color (for bark and smoke ring). It never let's me down and I love the flavor that is there but not in your face and distracting. The best chicken thighs I ever did were straight cherry with Yardbird rub. Amazing!
All that said, I also have Pecan, and Oak that I have yet to try. Can't wait!!
- Frank - KCBS CBJ - 22" WSM - 22" OTS with Smokenator - Maverick ET-732