I like using D-76 either 1+1 or 1+3.
I like the extended developing times as I find this allows a little more variance relative to time & temperature. The shorter the developing time, the more accurate the person needs with the developing temperature, time of development and this includes draining the can of developing chemicals and whether you use stop bath or water before fixing.
From what I've read the longer developing times with dilute developers gives a sharper image. To be honest, I don't notice much of a difference but my eyes are almost 64 years old!
I find film developing can be a fun area to experiment. However, it's nice to have a main developer, working solution down pat before going off in other directions.
Hope this helps you.