Choosing a vacation rental site to list with

I'm curious what you use to choose your vacation rental site for each property. I have a few assumptions about what you are using to make the decision (such as airbnb is probably better in cities due to a younger target renter), but I would love to hear more feedback.

It seems like it would be difficult to manage a rental on both vrbo and airbnb at the same time, so I am trying to figure out which would be better for my purposes.