All three at the same time would be great.
One ass for a good fuck in cowgirl position, the second ass for some face sitting and the third ass...eeehhh :dunno:
I will pick the middle one, no 2.
Definitely 3. I like the curve at the top of her ass making it nice and round!
Well, there's no doubt ab it, no.3 looks best, most curveture. But on second thought, if no.1 ass would be in the same angle in the pic as no.3, it could very well be a draw. Hmm...