Marvelous X-Men #1 (spoilers/discussion)
Just like in Age of X-Man Alpha, Thompson and Nadler are doing a hell of a balancing act here. They pulled off a really good mix of selfless, almost Golden Age superheroing combined with the small world-building touches that just give a sense of [i]wrongness[/i] to the whole set-up. Plus the reveal of Nate's explicit selfishness in deciding on the framework of this "utopia" is really rather upsetting, especially given what he does to Laura, a character who's already been used so callously by others.
And then there's Apocalypse and his crew. They're an unseen faction in this issue, and it's interesting, seeing how creepy and intrusive they appear to the X-Men vs what bits and pieces we know as readers.
Again, strong issue, but the real fun is in waiting to see how things are going to unravel.