We've gone for the past 3 years
Always using FF miles on American. Luckily we've been able to do this for our family (4) at Xmas time. This past trip we stayed in a condo that we booked through VRBO in Princeville, LOVED having the space and couldn't beat the price. $1130 inc. tax and cleaning for week. Had full 2b/2bath loads of space to spread out washer/dryer and 2 bikes for the kids to explore with. Loaded up on provisions at Costco and used the BBQ most nights the kids could have used the pool/hot tub while I prepared dinner (which I didn't mind at all) -- we always watch the $ years earlier we used to go on cruises instead but now enjoy a hawaiian land vacation.
Highly recommend booking through owners on VRBO we're hoping to do the same this coming Xmas (already have tickets -- booked in Feb when the first got loaded in system).
Good luck with planning

Highly recommend booking through owners on VRBO we're hoping to do the same this coming Xmas (already have tickets -- booked in Feb when the first got loaded in system).
Good luck with planning
