Vietnam, ToD or DBP?

[All_American]

JTS sale is about to begin in a couple of days and I'm thinking about getting my hands on (at least) one of these three, along with AotR of course!

I have read similar, older threads about this as well but I'm yet to reach a decision. I realize Vietnam and ToD are both older titles with scenario designs done by John Tiller himself. DBP on the other hand has been lauded for its great scenario designs but some users have described scenarios as being quite the slog, keeping true to history.

For those who have played all three, which one would be your pick? I'm asking specifically in terms of scenario design. As I'm interested in the period covered regardless whether it is the Americans or the French who are depicted.

Thank you for any input!