After seeing The Dark Knight Rises, I made this chart comparing the villains from each of Christopher Nolan's three Batman films: Batman Begins, The Dark Knight, and The Dark Knight Rises.
This chart is based on my opinions of Ra's al Ghul, Scarecrow, Joker, Two-Face, and Bane. It's not a completely serious look at the films.
THIS IS TOTALLY SUBJECTIVE AND MEANT TO BE A LITTLE SILLY. (I mean, c'mon, I said Scarecrow is defeated by a taser.)
If you just want to see a comparison of the main villains from each movie, see the original chart:Christopher Nolan's Rogue Gallery