By no means was I expecting a Knightfall movie. It's just that the Bane in this universe presented so much exciting raw possibilities right off the bat and to see it realized in the least interesting and watered down way was so disappointing. I mean this is the last movie. You need to bring it and end with a bang. And you're right that the movie had far bigger problems in the story itself I believe a great deal of that is tied to they're version of Bane (The Final Villain).
Hardy's Bane is so far my favorite version of the character in terms of look and voice, etc. But ive always loved Bane from the comics. A lot of great stories from the 90s. His intelligence is amazing. But you can also say that Ras (or Raysh

) Al Ghul is more fascinating of a character than Nolan's. This all means nothing to me when im watching a film. I concentrate on what im getting in the movie and I don't compare too much. This version of Bane was amazing and one of the best villains these genre of movies have to offer. It closed off the last movie with a bang. He was still intelligent and powerful as hell. I also adore Neeson's version of Ras who was an amalgamation of Ras Al Ghul and Henri Ducard.
For the story that was told, I don't see how Hardy's Bane could have been better. I cant think of any ways to show that he was more intelligent or whatever you're nitpicking. I guess you wanted the entire plan to be his and not Talia's? Well it was both of their plans. He still had an incredible journey. Showing him break out of the prison or reading in his cell wasn't necessary for this version. He was smart and physical, he was like a warlord. He was trained by the League, just like Bruce in Begins..but people don't complain about that do they?
Bane was excommunicated and then he went on his own path and gathered up followers. Sure it would have been cool to see him climbing mountains, recruiting his men, but this probably happened anyway. You just have to use your imagination.
Heck there was a certain level of emotion at the end of the movie that I don't remember him having in the comics. There were no damn teddy bears or romantic puppy love stuff going on. It was a love for a child in a protector kind of role. Like a guardian. The only innocence left in his life. He was nobodys *****.
Yeah, he wasn't so obsessed to the point where he comes to Gotham to challenge Batman, nooo, but he it's cool that Nolan liked to change things up to fit his universe.
It comes down to opinion I guess. I loved Nolan's Bane as he is. I don't need the comics to come to life. Ill just read the comics for that.