Ok, this helped. Cranked to 32x in game, but in NCP, set for application controlled but cranked up AA-transparency to 8x, DSR to 1.5 on factors and 50% on smoothness, enabled MFAA. Hopefully it'll stick.
Edit: Would still like to know what everyone else is using to optimize eye candy.
Edit2: Bah, something is now causing a framerate dip when the particles start flying in heavy combat. Already disabled DSR, so that ain't it. But AA still looks good so I'm leaving that off.