they just show BFL in tabular data
BFL's fine .. easy operation but, in general, sub-optimal numbers. Sometimes you don't get to choose, eg DC9.
I’m not sure how they selected V1 in the Globals to always equal Vr on dry runways
Not had a play with the Global AFM. However, that suggests that you have a good ASD performance and the V1/VR has been chosen to be 1.0 to give you the best obstacle clearance weights.
Years ago, I looked after some Argosies .. generally I pushed V1/VR to, or near, 1.0 to minimise problems with an abysmal first segment .. but that was for the Queen of the Skies, you understand.
It's definitely type specific.
Not so much the plane but more the way the AFM is structured and how flexible the performance options might be.
V1 is related to runway performance (length, condition, wind etc) for a given weight while Vr and V2 are related to the airplane weight alone.
A few other things to consider but that's a reasonable start ..