we really don't know. one thing billy and I agree on is most stuff can be put in some sort of cheat quick formula. Most stuff is not 2 dimensional, but in this case the formula is
REAL REB = A x ath + B x REB
All that is left is to approximate A & B
I like having it so A + B = 1, that way REAL REB is a number like REB or ATHhen billy says less than half he means at half, A=.33, B=.66 (Billy I think at least that is what you mean), but he also said more like .4, which is probably more like A=.28 and B=.72. To make the math easy, how about A=.25 and B=.75
that would leave
player A real reb = 52, player B = 68, player C = 70
Since we did so much roundinig, I'm going to say both billy and rails are right, B=C, but A is worse, how is that for a fun little math exercise that is politically correct.
Maybe if you guys are nice, sometime I will do my math for REALDEF - LOL
Oh, and the above applies only to motion, triangle and flex are quite different, OK just kidding.