tparker24
Afrodrum
To my surprise the clear winner was "Loose Kit" from now nearly forgotten SI Drums. Beautiful clear sound, as good or better than AD2 Black Velvet and/or any from Slate for SD3.
From my testing, it looks like SI Drums is not very GM compatible -- it is missing over half of the GM notes, and it has a couple that are not GM at all. I guess it might work on a bare minimum midi file (and of course, with the midi files that come with SI Drums). But I wish it was fully GM compatible, and not just a half subset.
Indeed SI Drums, by today standards, is a very simple synth but I found no problem with missing notes and grooves were not too simple. EVERY Erskine note was played clearly by Loose Kit, and sounded IMO (!) even better than BFD kits.