In MY opinion, the best line up was the rhythm section of Kira & Bill.
The "Slip It In" era when they fused the streams of their early furious style with the My War "slow grooving" style. Sort of a punk rock "jam band" at that point.
I think this was their musical peak (not in terms of lyrics or "image" though -- in fact the lyrics are mostly worthless after the "Damaged" LP. Just Hank's whining and horny-band-on-the-road stuff.)
Though personally I also dig their look at that point -- Rollins hair got long, and the drummer looks kinda like Animal from the Muppets. Hippy punks!