I loved Messiah Complex but I feel that Ramos's art, and to a lesser degree Bachalo's, knocked it down a few degrees and made it less enjoyable for me. Plus, the ending left it open and I hated that it didn't have a concluded finish. That always bugs me. Civil War had a definate end. Annihilation had a definate end. Secret Invasion, for the most part, had a definate end. Messiah Complex left Xavier's life hanging, his body disappearing, and Cable in the future to raise the mysterious baby. Good stuff has come from it all but the event itself didn't feel complete.
And I felt that most of Utopia was kinda boring. I liked the 2 Legacy tie-in issues, and the final issue was great, but the stuff leading up to it was just kinda bleh for me.