Well, well, if that is not a deep subject.
A brief inventory of what I use is listed below.
The pistol/rifle brass used is 45-90, 45-70, 38-55, 45 colt, 44-40, 38-40, 32-20 mostly Starline with some mix of RP, CBC, PMC, Winchester, etc.
The shotgun hulls, in gauges 10, 12, 16, 20, are brass, RMC, Winchester, CBC and plastic hulls are Winchester AA, Rem. STS and other odd mix.
The powder used is real BP, 1F to 3F or APP in similar grain size.
Fillers are cream of wheat, fiber wads, cork, paper milk carton and foam backer rod.
Primers are usually what I can get, magnum for a hotter spark.
Want more boom and smoke, use more black.
Want less recoil, then use more filler.
Always fill case, no air space.
Use a non-petroleum lube like Ballistol and SPG.
Do I anneal? Yes, by the salt bath method.
Want less blowback? Then anneal.
The BEST combination?
Yes....................and have fun!