I have several that I like a lot...Primos sonic dome calls sound good, and I really like the Primos signature series "Will Primos". I like the Woodhaven Copperhead pretty well.
But, my go to call, of all the calls I have of any kind is a Rocky Top Game Calls mouth call..."The Slam". It's a three reed ghost-cut. Unbelievable sounds. It has been the driving force behind the end of several gobblers lives for me.