I choose combinations of materials based entirely on the results they give.
Having said that, the results from film developers depend so much on how you use them that in general I think many of us place too much importance on that particular choice. I have at times been as guilty as anyone of this sort of obsession. There are of course meaningful differences, but sometimes even those differences can become blurred as relative working characteristics are altered by film exposure, dilution and development procedures.
So in a way, convenience can play a role. With practice and adjustments, if someone gets their HC-110 negatives to look and print the same as the way they looked and printed with PMK, I'd say go with HC-110 and avoid the hassles of staining developers. If one can get the same image sharpness, graininess and tonality with D76 1+3 as they can with FX-2, go with D76 instead of having to scratch-mix FX-2. Etc etc.
In the end printing skill is where it's at. Pyro developers are great, but they do not change what is possible in the print as some would have you believe, they just alter the procedures used to get there (or not as the case may be).