option d (most expensive option too): court mats (soft floor?) rolled on top of springy hardwood floors! why: you get the grip from the mats and get the cushioning from the hardwood floors to ease the impact on the joints.
We got this kind of court in guilin.About 20 of them,in one place.Too bad the lighting is a bit poor.
nice springy wood, preferably just mopped and clean. Feels like i can push off with more power. They get dusty and slippy fast. Why not make this into a poll?