Haven't standardized per se on a film or developer, but am using mostly FP4 and HP5 with HC-110 and recently Pyrocat-HD which gives some very nice results. Fairly, HC-110 with high dilution (1:100) and minimal agitation can do the same. This is turning in very smooth, repeatable results for me that I'm very happy with not trying to change much. Surprisingly happy so that I'm not feeling there's a technical block in my "work" any more (although I'm going to be a lot less less aggressive with the squeegee than I've been). Might even throw out the other stuff I bought "just to try" 'cause I don't need the distraction? It's possible. (Bottle of Rodinal untouched; TFX-2 untouched; and FA-1027 used a bit).
I've bought some Bergger 400 and Fuji Acros but haven't shot them yet, and haven't developed the Pan-F I shot yet either.
Hemmed and hawed about ordering more Pyrocat-HD when I ran out... because some of the things folks write about it make you think you're working with Nitroglycerin... which you're not, but it kinds of makes you leery in ways HC-110 probably should as well... but no one talks about it that way. Anyway, I like the very high dilution chemistry and minimal agitation, and don't see much of that reported on with either XTOL or D76 as a tool for imaging... and there's only so much "figuring'" and guesstimating and experimenting of my own. So I guess that means HC-110 'cause "I can do the math." Like to stand on the shoulders of the giants who've already done the hard stuff and simply revise from there 'cause I'm not really equipped to do more than that.
FWIW, creativity... matters more than technique, but technique can get in the way if it's not smoothed out. Problem with changing equipment, film, developers is re-setting what you know... which I think delays stepping up the game or figuring out what variable to play with to improve. Maybe not for everyone. But for me, creativity comes with shooting a lot so that your (my) eyes begin to see stuff that's always been there... only now you realize what you can do with it.