BandShipper - Nicky (Unova), Billy Jo & Roxie
ExhilarateShipper - Nicky (Unova) & Roxie
UpbeatShipper - Billy Jo & Roxie
BackupShipper - Nicky (Unova) & Billy Jo: I don't really know if we're going to go with "Nicky (Unova)" like the Bulbapedia article, but it's better than "Roughneck Nicky," so I don't really care. *shrug*
CultClassicShipper - Brycen & Pop Roxie ... Or, uh, "Roxie's dad" or whatever we're going to call him. I just used "Pop Roxie" because that's what the game uses.
Also, before I forget: Luna, your list of Falkner ships says Zephyrshipping is both Falkner/his father and Falkner/Walker (understandable, since Walker's almost certainly meant to be Falkner's dad); the main list, though, only says "Falkner & his father." When I started searching for ships involving Walker (long story), I almost thought the ship didn't even have a name. Just pointing that out, in case that's not on purpose.