Avengers / X-Men: Utopia

I just finished reading Avengers / X-Men: Utopia, I can't say it was a great crossover in fact it was really a little less than OK.  The beginning of this crossover is really a weak basis for involving the Avengers a riot between mutants & humans in the streets of San Francisco.  Really the whole purpose of this event is for Norman Osborn to make his own team of X-Men to gain control of the mutant population in the United States.  Osborn running the Avengers & H.A.M.M.E.R. is scary enough but imagine if he control the X-Men as well.  This new team of X-Men is lead by Emma Frost other members include Namor, Mimic, Omega, Daken, Mystique, Dark Beast, Cloak & Dagger.  The story goes where Osborn is trying to discredit & arrest mutants that are not part of his X-Men on site.  This leads to Cyclops & company to take drastic steps which culminates in the raising of Asteroid M from the depths of the San Francisco Bay & renaming it Utopia.  The main difference between Osborn's teams & the real Avengers or X-Men is that they don't fight as a team.  That is more apparent than ever in this book as the X-Men defend Utopia from the Dark X-Men & the Dark Avengers in front of the whole world.