Rodinal for me is too grainy for Trix in 35mm, but is OK with 120. D-76 is great with Trix, but you have to mix and store and hope it doesn't go bad. HC-110 is good with grain and is one shot, but maybe some don't like the results (tonally). Other developers have sudden death, or are allergy prone, etc. So even though I used D-76 for years and switched to HC-110 just for convenience, I'm just as happy when I got the time, the film speed, and the agitation right. Take your pick: establish your development scheme and if you can't live with the result try another. After all is said, it is your style and that is what is important.