I've never tried BW-2; I did try TFX-2 with TMX a while back and found that results were indistinguishable from Rodinal 1:100.(posted 8354 days ago)I don't think there's such a thing as a "dedicated T-grain developer," there's only advertising. An interesting tidbit is that the standard developer used for R&D of the T-Max films was D-76 1:1.
At any rate, I'm getting good results with HP5+ and Delta 400 with Ilfosol-S 1:14, but I don't see that they're signficantly different in any way than my standard D-76H 1:1 to 1:3. Curve shapes are _slightly_ more S-shaped, which means flatter deep shadows and flatter extreme highlights, but the differences are so slight that while they're measurable I really doubt they'd be apparent in ordinary usage.