I don't see what's wrong with using high res sprites.
it has nothing to do with high-res but here are the problems with the following list.
Arcana - choppy as hell, and the motions are not smooth.
Battle Fantasia - good 3d models to look 2d, smooth. but the motions were kinda repetative from what i saw from youtube videos.
Rumble Fish - 2d sprites with moveable joints. What a LAZY way to animate characters! Might as well be a flash based. Choopy.
Guilty Gear - too many sparks, too much dust, and i hate guitar riffs.