I did some tests with this tactic. I had an average team of 130 CA and saved before a crucial match. I then used FMRTE to change the attributes of 2 players each time to all 20's (legend).
Results in terms of goal difference (tested 10 games each position):
Legendary DCs = +28
Legendary WBs = +34
Legendary MCs = +37
Legendary WMs = +48
Legendary F9s = +57
I don't know if we could claim that F9s infulence the tactic the most, and then WMs, MCs, WBs, DCs in that order
Results in terms of goal difference (tested 10 games each position):
Legendary DCs = +28
Legendary WBs = +34
Legendary MCs = +37
Legendary WMs = +48
Legendary F9s = +57
I don't know if we could claim that F9s infulence the tactic the most, and then WMs, MCs, WBs, DCs in that order