all are good;ive got the meatgrinder and a SMH by the foiles boys, but most of the time i blow a super mag by tim grounds... it's simply the best poly call you can get hands down.
nevertheless, any of the calls you choose will work fine if you learn how to blow them; another option is a flute call, i think they sound more like a real goose than any short reed. flutes call will be back; mark my words!!