It's pretty simple this Tour - Pogacar should take 20-30 more bonus seconds than Vingegaard and they should be close in the TT, so if Vingegaard properly drops Pogacar more often than the other way round, he wins, and if not, Pogacar wins. I think option A is a little likelier, especially if it's hot. Everyone else will be a distraction if they're better than expected, and an irrelevance if they aren't (barring DNFs for both of the big two).
Right now, for me that comes to approximately 55% Vingegaard, 40% Pogacar, 5% someone else. That's basically still a tossup.