Female: Enough choice to choke a world serpent. I'd suggest Type 3, because that's what about 50+% of the top 100 adult mods on the list on Nexus say in their name. Never played a female, though, so I could be wrong as to what's good about them. Might just be the best 'dress-up' outfits, or even the most skimpy or worse.
Male: You're in luck if you want to play a guy, because there are two body mods to pick from, and they work fine together. Roberts and Breezes. Somewhere along the line the two decided to pick a similar body mesh so they could be compatible with minimal effort, and this is nice because there are some nice outfits for roberts, and nice outfits for breezes. Breeze even made some sweet pants for me, just pants and shoes, no shirt. Great for showing more of your fancy body textures.