I adore hot sauces!
I used to make my own until things got busy with school. Now that things have settled down I want to get back into it more seriously.
I tend to have different sauces for different meals.
Sriracha = most asian cuisine
Thai chili sauce = Thai, other asian cuisine (dumplings come to mind)
Buffalo = fried chicken, breakfast, fries, some burgers
Chipotle (Tabasco) = Tacos, Burritos, Latin/Mexican cuisine
Tapatio/Valentina = Mexican/Latin cuisine, tacos, breakfast, fried chicken
Classic Tabasco = breakfast, variety fallback at restaurants (since that tends to be the only option some offer)
I experiment the most with fried chicken, so I'll throw my extreme sauces on those when I want some real heat. I have a nice Carolina Reaper sauce. Also got an awesome pepper medley sauce from a market that I just affectionately refer to as my "Bomba Sauce" since I've long forgotten its real name. It came in a small glass bottle in the shape of a bomb, the cap has a wick coming out of it to add to the imagery. That is a mixture of habanero, Carolina Reaper, and Ghost Pepper.
I've tried hotter, and can enjoy them, but for general consumption I don't really go higher than Carolina Reaper.
My personal sauces tended to either be jalapeno and Serrano based with branches into habanero and chipotle peppers.
The one mixture I tend to not like is the adding of sweetener agents to hot sauces. Only exception is Spicy BBQ sauce, but I don't really consider that a hot sauce. I don't want Mangos w/ my Habanero and I don't want Pineapple with my Jalapenno unless they are toppings on a Hawaiian pizza, not in a sauce. Its just a pansy hot sauce at that point.