Honestly theres a big problem among many Banes that lead to differing opinions on MUs because its odd to think about not using all of our tools in an MU.
Some Banes feel characters who slip out of oki are bad for us because we can't oki them, but then theres the other side of the coin, namely we can maximize damage with minimizing the need for advantage enders. Examples are stuff like ending combos in Ring Toss for the highest damage despite it not giving us all the advantage we usually want.
People have to start picking up that MUs can't all be played from the opponent's back. Normally those characters whom have teleports either don't have as high of damage, or don't have as good of keep-away to avoid us (Zatanna is the only one who happens to do decent damage and have good keep-away which is why I won't say she is even). Ares does decently high damage, but he can't keep us out and he has no real way of getting in unless the Bane is asleep at the wheel. Also at level 3, Bane doesn't even have to pay attention since he can f.2.d and it'll autocorrect and reach most options for both Ares and Shazam.
Grr's style is conventional for a lot of opponents because most of them try to fight Bane as though he were anyone else, and the ones who don't often find themselves not sure on how to avoid the big damage or strong oki. There are some opponents who outplay him because they are very aware of how to play Bane's game such as PPJ and Aquaman, and Arma as well since he, himself, has used Bane. However, that's all it is: A style of Bane play. Bipolar is a very grab heavy Bane who uses more lead-ins than raw specials and it works against some opponents who play against Bane trying to beat out his tools directly but its not as good against opponents who abuse Bane's slow start-ups. Max plays a very aggressive Bane that takes full advantage of his large hitbox on moves such as charge and the small windows inbetween blockstrings to bait the opponent into trying to escape his pressure, and punish those who don't using tick throws and high advantage pressure linkers. His biggest problem is opponents who know how to or when to escape, and are able to effectively stay out of that pressure once they are fully out of it.
All Banes have styles, some styles work better against some opponents, but it calls to issue that you can't base a MU number off of one Bane's performance.