Bane is Batman/Wayne's biggest opposition.
Until we learn that Talia has been the whole time. Destroying Batman in ways Bane was incapable.
The slow knife
it’s the slow knife...the knife that takes its time, the knife that waits years without forgetting, then slips quietly between bones...that’s the knife that cuts deepest.
He's the main antagonist and the Nolans have said as much in previous interviews.
Because if they mention Talia in those interviews, it is a major spoiler.
Bane was billed, so that you wouldn't think anything as the slow knife went about slicing him.
Bane had no beef with Batman. None. He was a tool.
Talia was the mastermind, and the executor. She wanted Batman to not only fail, but KNOW he failed in the reaches of his soul.
Bane broke his back. Talia broke him in every other way imaginable.