Mr.House wrote...
Batman is a defined character, Shepard is not.
That is just painfully wrong.
If Batman is such a defined character, how do you get everything ranging from:
The Golden Age Detective era
The Silver Age super campy era
the Adam West TV show
the ultra gritty 80's version, including the Dark Knight Returns
The Tim Burton "twisted nightmare" style films
The Joel Schumacher films
The Original Animated Series
The Brave and the Bold Animated Series
The current Nolan-verse
Each of these versions has more differences from each other than any possible pertubation of Shepard. Batman has had more love interests than Shepard could have. Different media and versions have even had completely diametrically opposed versions of a single event happen based off of different choices made by their Batman.
Bringing up Batman in this conversation is a nail in the coffin to your "defined character" argument.