Actually I think my favorite slate call is the one I made last month. It sounds pretty good. My favorite slate " other material" call is the Knight & Hale Ol' Yeller. Very versatile call, user friendly and easy to maintain. My favorite glass call is kinda hard. I' ve been using a H.S. Strut glass for years and have called several birds in with it, nice double tone yelps and rasp, but I just got a new Doug Camp glass call and it' s a little more versatile and a lot prettier. I guess I' ll have to wait until the spring to test it