My STR is in Los Cabos Mexico and currently about 60/40 Airbnb vs VRBO. I have seen this fluctuate wildly over time and agree with the observations on length of stay and guest age and quality.
TripAdvisor / Flipkey clearly have massive technical / system integration issues - couple of initial bookings but now nothing. And I’ve tried multiple times to go live on booking.com but the activation process freezes and I can’t get through to customer service to help resolve. Long term I think being on this channel is strategically important so plan to keep trying.
I am not convinced by @Kevin Lefeuvre statement that a synched calendar indicating multiple channels would cause you to drop in Airbnb search placement.
My hypothesis is that these sites, particularly Airbnb (which clearly has slicker technology / algorithms) are competing for market share of your listing.
We don’t know how the industry will evolve so definitely do not have all your bags in one basket. And I think we want competition to keep each vendor honest as a dominant player will take a greater cut of revenue over time.
Also, in the @Jerry W. duplex example, the differential performance is likely linked to search placement which is driven by listing performance, response rate, and many other variables. So they have just evolved differently over time.