I started with a Quaker Boy old boss hen, then used a HS Strut 2.5 cuttin and then went to a Lohman double reed and really liked it but now I can't find them anymore. I like just about any double reed that fits good, doesn't cost an arm and a leg and sounds good to ME. The triple and quad reeds are a little much for me.
Promos A-Frame Double reed with the Bat Cut. I think it's Troy Ruiz's signature call. I don't know much about calls, but it sounds good to me and it fired my bird up like I called his momma a fat old hen!
For the last couple years, my favorite has been the Zink Shane Hendershot sig series diaphram, but this year I picked up a Will Primos sig series and I really really like it. I'd say they are a tie for my favorite calls at this point. The Woodhaven Copperhead is a nice sounding call too if you like one with a lot of rasp to it.