I should qualify that, in saying that I've been to both places various times, I mean that I've been there usually through the eyes of a hiker, biker, climber... I'm new to the 4x4 thing, and was hoping to extract those that favor the Swell over Moab and visa versa. I had a great time in the Swell, yesterday. We drove the Mt. Dew trail, went over to the black boxes, went up Cane Wash, over Fix-It pass, and down the NF of Coal Wash. We had a great time. I was super bummed that we didn't have time to drive the Devil's Racetrack.
Though I believe they're different, I don't think that they're apples and oranges. Perhaps they are Gala and Fuji. I especially enjoyed the more technical driving, and was hoping others would come forth with some favorite "stashes," of technical trails.
For example, Kurt, you mentioned "BDC," in the Swell in another thread that I was reading. I couldn't figure out what the trail was, but throughout my reading and browsing, I'm lead to believe that there are technical trails out there that could (albeit not perfectly) be compared to Moab's technical trails.
I like the serenity and remoteness of the Swell. I love being out there and not seeing hardly anyone in an entire day of driving. (Though I recognize some serious downsides to that.) I like that it's an hour and a half closer to home. I like that it's so vast and relatively unknown, when compared to Moab.
Maybe I just responded to my own inquiry, but I was hoping to pick others' brains, as well.