Eh? Haven't you read Knightfall? Bane pretty much created a whole new Batman in the persona of Azrael, not to mention a whole new Batman comics line after being the only one to incapacitate Bruce Wayne to the point that Bruce retired until (not spoiling any further though)... The only freaking one IIRC... And that's saying a lot.
Nolan choosing Bane as the main villain for his 3rd film is pretty logical. For one, Bane's main motivation for moving to Gotham city was the notion that fear controls the city, after all, it was Batman himself who contributed to this as established since Begins. So it makes perfect sense, plus there's that possibility that the way this trilogy will end will be how Bane's existence has affected Batman in the comics. Nolan might change it a little by having Bruce Wayne incapacitated in the end to finish his trilogy, or something else.
Bottom-line is, it may not look interesting for you since you're not familiar with him, but most fans of the comics actually feel otherwise, especially considering that it's not often we get a muscle-bound genius combination.