D-76 is the standard by which all developers are judged - and it is a tough standard to beat. But a few alternatives have some advantages, not all other choices have advantages, and the advantages are not huge. But some are worth noting.
You never need to be apologetic about using D-76 - It is a great brew and I keep it on hand for anytime I don't have something else better figured out. Your fixer on the other hand is likely the same composition that many of the greats produced their enduring classics with and is also a fine tool for use with D-76. If your materials make the art you like - they are great materials. Kind of like my paint can with a hole in it that I make panoramic photos with - simple or classic is not "better" or "worse" than "exotic" it is just an answer so good it has survived.