FreedomSmokeUSA's Wyatt Earp Cowboy and their Cuban Supreme are my favorites out of the few I've tried. (I've tried Volcano's tobacco (cut me some slack, it came with my starter set) and I've also tried FSUSA's Camtel and PureCig.) My tastes tend to prefer bold, strong tobacco flavors - I'm not much on light subtle flavors so you may take that into consideration.
I have another order in with FSUSA that hasn't arrived yet for their Perique Black and Sunrise Specialty tobacco flavors. (Along with larger bottles of Wyatt Earp and Cuban Supreme.) If I like the two new flavors, I'm sure I'll be telling everyone about it.