Furnace Creek campground takes reservations. It's the nicest of the NPS campgrounds...fire rings, trees, tables It does fill occasionally, especially on holiday weeks (Thanksgiving, Spring Break).
Sunset campground is across the street from the Visitor Center and only fills during 49ers (beginning of November). It is a giant parking lot with a dump station and restrooms. But it has sunsets and sunrises to die for.
Texas Spring, up the hill from Sunset, fills on holiday weeks and does not allow generator use. It's used mainly by tenters.
Stovepipe Wells and Mesquite campgrounds never fill up. The hookup sites at Stovepipe (I think there are 12), run by the concessionnaire, do fill up.
Furnace Creek Ranch has hookup sites for their employees. They frequently have empty sites and rent those out but they are along a side fence and they slope down. I've seen rigs in there with their front tires 8" off the ground.
If it turns out to be a good wildflower year, many of the campgrounds will be crowded in March. When we there in '05 for the Hundred-Year Bloom, only Furnace Creek filled. Sunset was very crowded during spring break but didn't fill.
Wendy
Fantasy Springs Casino, Indio