Base type peppers for my rubs and spice mixes:
Cascabel,Jalapeno,Chilaca(Chile Negro),Ancho,De Arbol,New Mex.,California,Guajillo,Red Chile Flakes,Pequin,Tepin,Paprika types and several heirloom types from everywhere.
Depends on the flavor I want.
I use Habaneros,7 pots Bhuts,etc to balance the heat and blend the taste profile I'm looking for.
Depends what I want or who I'm cooking for at the time.
It also depends on what other,non pepper spices I use for that particular rub or mix of powder.
Mex. Oregano,Mace,cinnomon,chocolate,Rubbed Sage,Thyme,Garlic powder,Lemon Powder,Italian spice mix etc should be included as far as what you use any pepper blend for.
What am I putting it on also means a lot.
I only use Smoked Pubescence by itself for the most part.
I smoke dry a Lot of the peppers I use in general though I don't smoke dry small stuff in general (frutescens,tepins,Pequins or whatever).
The small stuff gets mixed with smoked stuff so it works out the same in general.
Limiting yourself to single peppers dried and ground really is a waste in my opinion.
Most blends are way better than most any one pepper by itself.
Complex flavors are needed for different uses.
Can't get the blends that I think will be best by just using a couple peppers ground up or whatever in most any dish.
Ya,some only use,for example,a specific super hot or ? to put on a pizza or whatever.
I don't think that is why you started this post.
I'm talking about making something from scratch,not just heating something up or doctoring up a sauce or dish.
Your question boils down to probably what is popular as far as what is popular to the masses in general.
50 varieties is way too few varieties if you get into what is popular in different ethnic dishes etc.
This site having a very large international membership would make this post go on forever.
A good thing I think,get ideas that might go past the norm that people think are status quo.
IF this post gets past the common internet crap-super hots and instead into the flavors/blends of spices others use or are used to and are looking for in different ethnic dishes it could get REALLY good.
Caribbean dishes are different than Mexican ones,African ones are different flavors etc.
Fish,Beef ,vegetable dishes or whatever use different peppers to get what is needed for specific dishes.
Would be cool if people posted their pepper of choice,dry or fresh,with different type dishes(not recipes-generalities.Put recipes where they belong on this site).
Just ideas about different peppers in the way they are used by whoever in their favorite way.
Cool question/post if it stays to being peoples favorite blends rather than"I like Supers , Scotch Bonnets or ? only".
No recipes,just what different peppers you think work best together for whatever you use them for.