Realistically, you both won’t get Raptors or F-35s. It’s easier if you both are stellar student pilots because the drop can be worked appropriately. Biggest piece of advice is to pick an airframe with lots of assignment potential and not limited on training slots. If you haven’t already done so, you both need to sit down and come up with three COAs: 1) you’re both great and have reasonable certainty for assignment preference 2) one of you is good and the other isn’t 3) you both suck.
UPT is an environment where timing is everything but the squadron leadership has a much larger impact on assignments than naive 20-something-year-olds generally believe.