Fair question, Keith. I will preface this to say that to my knowledge there has never been a developing formula that is perfect. Even the best formulas have their strengths and weaknesses. Which brings us to understanding that one person's favorite developer may not be liked by someone else.
Edwal FG-7 is a proprietary formula. I like it because its long tonal scale and smooth midtones, fine grain, and acutance suit my taste. I have found that it is a good match for the type of work I do, the photo I shared being an example. Someone else might not care for it, certainly Bill doesn't.
I suggest you not put too much stock in what I like.
Freestyle Photo still lists it on their site, but I'm not certain it is available. If it is, order a bottle
and let me know what you think.
Ansel was a big booster for Kodak HC-110 when it was first introduced. Due primarily to his praise, HC-110 became popular among many Zone System photographers. And then he fell silent about it. Not a word. I asked him why he no longer used HC-110. He said that when it first came out he was excited about it, but after about 3 years he decided he didn't like it as much as he originally thought. He had nothing bad to say about it, and a lot of his students were using it to create good work, so he decided not to say anything.
HC-110 is a perfectly good developer. Many great photographers use it to this day. Ralph Gibson, Brett Weston, and Henry Gilpin preferred Rodinal. I like FG-7.
I also mentioned I like ABC Pyro. Personally, I don't think ABC is the best formula to use with modern emulsions. I use it because it connects me to the past and I am a nostalgic sentimentalist, probably why I still work with film. So, don't switch to ABC because I like it.
What do you like, KT?