I've used both (but mostly B) and have found it to be a "roll of the dice". It's just luck when you get there depending on cars that were returned that day and what time. Also depends on how fast they are working on cars coming in from the return line. Anyone know how they wash them? Do they have some kind of automatic car wash (like at gas stations) or do they do them by hand? I know they don't do a good job of drying them, they usually have water spots on the windows/mirrors.