Well, the characters in the comic act like complete idiots, talking too much without saying anything.
Recently an edition of Infamous Iron Man and another one of Invincible Iron Man, have been totally modified after they have been solicited. This is common when writers are replaced in a title, but with the same writer I don’t remember ever seeing anything like this.
The end of Infamous Iron Man incidentally, was one of the most idiotic comic that I have seen in a long time.
For me, this is a sign that he never had a clue as to what to write. If this is not a mess, I don’t know what it is anymore.
As far as bad writing goes, Bendis did a much worse job than Matt Fraction.
Fraction wrote a character who was unlikable, and whom I did not care whether he lived or died. That alone is enough to make him inferior to Bendis.