That's a good question Mike. I LOVE all turkey calls, lol, and I'm particularly fond of a well made, good sounding Pot Call. I like a pot that does it all. I want it to be able to scream at times to cut the wind and to locate far off birds. That same call can be played soft as well just by using a softer touch or even a softer wood striker.
IMHO, D.D. Adams hit the nail on the head.