Well, it depends on how he would approach the character; thing is Croc isn't really a motive driven character because he's not too bright in the head, or at least after a couple of stages of mutations. However he did have a motive of stealing money and holding captives for ransome in order to be cured of his rare disease in the Hush series; which to me is more than enough for a personal vendetta to stage good characterization for a Nolan film. It could easily be used and have him be treated like a henchman or simply a pawn like Scarecrow or Falcone like in BB.
As for Bane, he's literally quite the opposite of Croc; he does have motives and actually has many advantages that makes him one of the greatest villians in Batman's rogue's gallery. And after B&R, he really hasn't recieved the credit us fans deserve and more importantly himself in the comics. After all he's actually one of the villians that has defeated the Batman not only breaking his back, but his spirit as well; no villian has really ever gotten that close with the exception of the Joker murdering Gordon's wife and Jason Todd along with crippling Oracle.
And no problem at all my good friend; it's just how you present yourself in a discussion and excute behavior wise. In this case you're doing a fine job and find it to be quite stimulating.