Superman's origin
and his throwdown with the Collector or Worlds come to its
conclusion. While Morrison's writing is known to always look at a
bigger picture, an overarching story, the most immediate tale ended
without much of a bang. I find the new concept for Brainiac
uninteresting, and -absurd as it may sound- void of any character;
however, a redesign or a new iteration would not be an issue since
it is a robot after all, it can be reinvented as much as necessary;
Luthor on the other hand, does not have that luxury. Thus far,
Superman's quintessential villain has been less than impressive and
even bland.
Even though the art duties were shared among four different artists,
the pencils in the important part of the story remained consistent
and were not disruptive; the aftermath portion was the one that
differed the most, visually speaking; but it can even be considered
an "optional read," so no loss there.