@Bruce Woodruff
I think the either/or mentality is odd. But my experience of comparing the two...
On VRBO, the amount you put the rate in at, is the amount you receive. They will adjust it up for their fee. On AirBNB, the amount you put in is not the amount that you get. The adjust it up a bit for the guest (the portion of their commission that they charge the guest) but will take their commission out the amount you set the rate at. Some people describe this as who pays the commission, hosts or guests, but as long as you understand before setting rates, it does not matter.
VRBO charges higher commission (but again you can compensate for that by set the rates differently.)
AirBNB will refund guest without your consent, and can be very inconsistent in doing so, depending on what agent answered the phone. They are showing a trend of favoring guests over hosts. Also, they frequently keep their commission when a host refunds the guest, so guest is out the commission amount. VRBO will check to ensure that it is not an extreme or unsafe issue, but will not refund a guest without hosts consent. If host refunds, they will refund the commission too. (During COVID, AirBNB even gave guests AirBNB credits only, instead of cash, but hosts got nothing. Hosts thought guests were getting full refunds.)
In some markets, AirBNB does not collect all occupancy taxes. Hosts must collect and pay this on their own. (Depends on county). VRBO takes care of taxes.
AirBNB has many more rules (for both guests and hosts). They will not hesitate to lock hosts out of your account based on accusations that the will not even share with you, and take a very long time to investigate. VRBO leaves guests and hosts to work things out on their own. They will try to mediate, but not strong arm.
AirBNB has developed a specific culture that many people enjoy. They give out accolades like “Superhost”, and advocate a “right” way of hosting. They have a lot of resources to help people get started.
During high seasons, or in markets that have a long history of STR, you can do well on VRBO, but AirBNB gets more traction in most markets.
However, it is not a good idea to be too dependent on any one platform. I am trying to work toward direct bookings.