The head to head approach (feel free to toss in the coin flip technique as well) seems to be working pretty well for a lot of kids. Seems kinda obvious, I guess, but something about that A or B framing seems to really help crystalize for some kids where they would truly be most excited to go.
And between us, that is really all you can reasonably achieve at this point. Assuming you did a good job choosing your colleges at the application stage, at the offer stage you probably can’t really predict reliably whether A or B will actually be the optimal future path for you. Life is too complicated, four years is too long, you are too young and (hopefully) still evolving–so it just isn’t the sort of thing which is subject to that degree of predictive accuracy.
But I think it sure doesn’t hurt to start off as excited as possible. So, you know, figure out where you would be most excited to go, and then make the most of it once you do go. I really am skeptical there is a much better plan than that.