I mainly use open reed calls so I will coment on those. I think the Crit R' Call Standard and Pee Wee are good, as well as, Randy Anderson's Lil' Dog. The good old Tally Ho is also still a good producer. I also like Rick Palliet's Tweety and Thumper open reed calls. These are some of the production calls I use.
You might also want to check out the Custom Call Makers forum. Anyone of these guys, I am sure can build you a great call. I am looking into getting a few built myself. I do have one of Rich Cronk's Killer Call which is an open reed call also, and I really like it. Good Luck.