My favorite retail box calls:
Primos HeartBreaker. Great cuts/yelps, and and Kee-kee... Does not pur great, but this particular call seems to drum up a gobble when nothing else will, and seems to be particularly irritating to hens. Mine is NOT for sale.
Lynch World Champion... Darned good turkey call, and as good (or better) than any custom calls I have. Yelps/cutts/purs. I do have one that will not play on one side though? Should have sent it back when I got it, as I understand their customer service is good.
Pittman Game Calls (Preston's 2-Face) is a great call. My daughter took it over from me. Yelps, cutts, and really purrs well.
Diaphragms
WoodHaven (hands down the best retail diaphragm call for me)
Zink (distant second)
H.S. Stut (third choice). Love their diaphragm wallet though!