There are some distinctive chorus pedal users that you may recognize. John Scofield is the king of strange chorus sounds. He uses a high speed and depth to get a bizarre warbley sound on some of his phrases. Many other metal players use a slow rate and shallower depth to add fullness to everything they do.

I find that the more subtle and less noticeable chorus is my favorite. It can fatten everything up without being obtrusive, like you don't really know that it's on, but you'll for sure know when it's off.