Depends on which dilution (straight, 1:1, 1:3) for D-76 and XTOL. HC- 110 also has a lot of different dilutions available. Don't know anything about Gainers.(posted 8107 days ago)XTOL and D-76 both have fair amounts of sodium sulfite (less apparent grain and less sharpness), but this can be substantially offset at higher dilutions. At one time, HC-110 did not contain sodium sulfite and this was one of the reasons Ansel Adams used it (of course, with 8x10 and 4x5 negatives, grain was not a concern). However, I have heard that current versions of HC-110 may have sodium sulfite, but I am not sure about that. HC-110 (dilution B) and Tri-X is a classic combination that has been used by many photographers. Of course, for portraits you may prefer a softer look.
Of course, when the new Tri-X comes out later this year, things may change a bit.