The large number of posts concerning film and developer on this site witness the importance we all give to these parts of the whole photgraphic process. However, my most recent discovery is that the printing is what really makes the difference. For a long time I believed that if only I could produce the perfect negative the print would automatically come out as I wished. But now I see this is not the case. Most films developed more or less correctly can be translated into the print you want when applying the range of techniques - correcting contrast, dodging, burning, flashing etc - available. So now I don't spend much time on developing - HP5 (and FP4) in Xtol stock, making sure I don' underexpose, that's all.
I was led to this conclusion by studying the work of Michael Kenna including the rare interviews where he talks about his technique. Somewhere he said "developing the film is the most boring part of the process". And also, his choice of film is rather simple, Tri-X by preference. He does not, to my knowledge, reveal much about his printing techniques, except that two to four prints is what he can do in a full day's work, in other words, there is a lot of trying and testing involved.
And after all, one negative can produce so many different results
Peter