Thanks for the reply and follow up discussion. Just to be clear - what gives us both the best chance of getting upgraded? Splitting at T-24, waiting as long as possible to check-in and split, or not splitting at all? I am wondering if splitting the PNR will drop her down a few spots since she will clear as the 'last platinum.' First class cabin is now 13/16 booked. Still sitting #1,2. What would you do in this situation?

Our plan, if upgraded was to ask our seat mates to swap. If that doesn't pan out, we are perfectly fine sitting by ourselves. I am not a DYKWIA!!