I think that Bill makes good points. I obviously chose the VC OS, but both pieces have merit. For me, the Maltese cross bracelet was a huge plus -- in addition, for whatever reason the RO just doesn't sit on my wrist correctly while the OS rests very nicely. I also liked the OS dial better, and perhaps the concept that "everyone" (a very relative term in high-end watches) was buying the RO made the OS that much more attractive to me.
By the way, I'm a big fan of the base movement -- my old-style JLC Geographique is beautiful and keeps just about perfect time, in addition to being a great travel watch -- one more reason to like both of the more sporty variants from VC and AP that you are considering.
Go with the one that speaks to you -- and have fun (and take your time) considering both!
Best,
Gary G