The GoodThe short and sweet ones rise to the top, here. I particularly liked Dan Slott's one-page Spidey story for clarifying the nature of Heroic Age in such a tongue-in-cheek way. Superheroes are, of course, defined by larger-than-life conflict, so I've been amused by the implications that Heroic Age is meant to do away with darkness, and by extension conflict. However, Slott finds a funny way to clarify that there are still problems to be fixed and tie it into a joke about how Spidey can never catch a break.
I was similarly amused by the short MI-13 story, which demonstrated an appealing range of personalities in only two pages. Kirk renders some very expressive body language that adds up to a great punch-line about how much of a bastard Pete Wisdom can be.
The other two stories, about Jameson and Voodoo, are similarly low-key and just as effective. Busiek's short plays (unsurprisingly) like a good Astro City story and I enjoyed seeing how J. Jonah applies his yellow journalism thinking to the mayoral office. The twist at the end smartly thwarts him at the same time as allowing him to spin it to his advantage. Seeing Voodoo, such an otherworldly character, trying to balance his work life with dating like any normal guy was also fun. Samnee's art was able to deftly dance between surreal landscapes and ordinary settings for the dinner date (almost literally) from hell.