Sometimes I'll just cut off their limbs so they're stuck just wiggling, but more often than not I'll make sure there are at least 40 clean pieces of the enemy lying on the ground by the time I'm done. On an off-day.
If I just do a random BM it's either a one hit Zandatsu or multiple strike if I miss (analog) If I send the enemy flying (D U Tri) I'll cut off all the limbs and some (process takes the full FC bar) and finish with a Zandatsu to replenish FC.
Sometimes I like to go nuts and just dice enemies into tiny pieces. Or in one case I decided to see how many strips I could cut a single target into using only vertical slices - straight up and down, or nearly so.
I do a decent amount of slices for fun and Zandatsu as much as I can. But if I get really pissed, I swipe like a madman. This made the demo freeze once when I cut off 1 leg of a Gekko and was still being shot at by him, so I decided to cut his head piece into a ton of tiny pieces and it just froze.....