My favorite aspect of our hobby is the great profusion of blends available, so naturally I'm one of those guys who keeps scores of different blends in his cellar and has a dozen or more open at any one time. But there are nonetheless a handful of "desert island" blends that have stood the test of time and that I go back to frequently. Those are:
1) Old Joe Krantz
2) Carter Hall
3) Odyssey
4) Filmore
5) 50-50 mix of Ennerdale and Bosun Cut Plug
6) Northwoods (although this often used as the base for my own personal Balkan blend, which I tweak regularly)
7) Classic Burley Kake
8) Countryside (I used to smoke Gatlinburley every single day, but then the recipe changed and I discovered this concoction from Boswell's is identical to the original GB)
That's a lot of "go to" blends, I suppose, but those are the ones I'm dipping into 90 percent of the time.