Since I have a hate affair with Kodak, I use a little as possible.
I use Ilford FP-4 for most things and Zonal Pro Gamma Plus developer.
This is all in 6x6.
I agree, find one combination and learn it's ins and out thoroughly and get used to it. Then every once in a while experiment with something else.
The nuances of these things are rarely seen by beginners and so they are better off to just pick one and use it, until they develop an eye for what they like and don' t like.