Let me see what I have under the bench...
I seem to have Alliant Bullseye, Red Dot, American Select, Unique, Power Pistol, and Herco; Hodgdon Titegroup and Universal Clays; Winchester 231 and WSF; and some RamShot Zip. In the past I've used Alliant's Green Dot, Herco, and Blue Dot; Hodgdon Longshot and HP-38, Winchester Action Pistol and IMR 700X, 800X, and SR 4756.
The 45 ACP is pretty forgiving in powder choices, I just pick a loading that gives me something in the 800-850 fps range and try it. I most frequently use powders that double for my shotshell usage as they are also the least expensive unless I find a clearance sale or there is a rebate. I do quite large runs when I load, a 5 gallon bucket is generally a goal so cost and efficiency are large factors in my powder choice.
I have little loyalty to primers as long as they go "bang" and are not expensive. I have all the major brands and a number of lesser known ones. I work up loads every time I change powders and/or primers so I am not overly concerned in that regard. As I may run a couple thousand or more primers in an operation, doing a little testing with every lot is not a big deal in the big picture.