I've hunted 'em in over half the U.S. and my favorite trip has been my trek to the Pacific Northwest this spring. Hit up Washington, Idaho, Oregon, and Utah. Absolutely gorgeous country with a ton of varying habitat. Found birds in Idaho from the tip of the panhandle down to near the Utah border. In 12 solid days of hunting, I only ran into a few other turkey hunters. Some days I didn't see a single one. Chased Merriam's, Rios, and hybrids. Saw birds in places that blew my mind. Wildlife galore. Saw my first moose, heard my first wolves. Hundreds of elk. It is an 'Ultimate Trip' that is reasonable to make.
I guess my next 'Ultimate Trip' will be for U.S. Gould's or Hawaii. But I still don't think I'll enjoy either of those as much as my PNW trip this past spring...