I've tried most of the peppers at the top of the heat scale. For the most popular ones; Habaneros are my favorite for now, tons of flavor and plenty of heat(Caribbean Red's are the best of the group in my opinion). The Jolokia was impressive but mostly for it's heat, like mentioned above it didn't have a whole lot of flavor. I haven't been able to try the Scorpion's yet in fresh pepper form, but I've had a couple different sauces and recently purchased a puree simply containing the peppers themselves and a little vinegar, and they have all been delicious. Flavor wise they are just as good or better than habanero, and to me are slightly hotter tasting than the Jolokia. The puree is great as an additive to sauces, salsa's and any other cooking you want to add a sweet/spicy flavor to, because the flavor goes a long way.