For digital instruments (keyboards, synth, drum machines), "Sharp" would probably produce the best tone. However, for real instruments (cymbals, piano, guitars), "Sharp" sounds really fake and wrong. I use "Short Delay Slow" for those to get the best output. "Super Slow" actually sounds best with most cymbals as it's running at the half the sampling rate of the others, but it's horrible with anything electronic and for other tones, it does cut out the high frequencies a bit because of the falloff. Keyboards sound very warbly with "Super Slow" and can sound like they are running at half frequency rate while actual pianos sound really accurate. Try "Sharp" with the Ice Cube track and see if it sounds better.