D-76 and Tri-X is, of course, the classic combination. Although XTOL has been my favorite lately, I am currently working through a bag of D-76 that I found in the back of my shelf and am developing a renewed fondness for D-76 1:1.

You won't go wrong with either. Replenished XTOL is very nice. However, if you don't want to deal with the 5L quantity, than go with the D-76.

(BTW, XTOL is NOT a new D-76. It's a totally different developer basic on ascobic acid and dimezone.)