M3 and M2, primary reasons being my preference for rendering images with armored chars, and the Full Metal Gothic and Fantasy conforming armors (one an M3 conformer, the other an M1/2 conformer) and the truly WIDE selection of textures for them to get diff looks for diff knight renders. I can get the M1/2 set to conform right to M3 with minimal pokethru, yet still chose to use M2 due to some face sets and conforming hairs I like to render with. However, with more of the additional morphs and conformers being avail for M3, I end up using him more than M2.