Ultimate Marvel's NYC (of course
)
Really, now? To me, the Ultimate version of NYC is really not all that distinctive, or even particularly important to the larger scheme of the universe.
I mean, sure, it is/was the geographical headquarters of SHIELD -- the most influential defense organization in the "superpowered arms race" that defines the entire universe, pretty much -- but it feels more like a
base than a real
place. As a location, NYC doesn't hold much symbolic weight beyond the physical presence of the Triskelion (and if anything, it's provided a convenient target for attacks so frequently that it feels a bit ineffectual, at this point).
Granted, we're constantly reminded that the attacks on NYC -- either 9/11, or Magneto's attack in "The Tomorrow People", depending on your interpretation -- were the impetus for the formation of the Ultimates. But as readers, we are rarely ever shown exactly how the lives of ordinary folks "on the ground" -- everyday citizens -- were shaped or affected by it.
As a result, Ultimate NYC feels like it doesn't have any real character, beyond its use as a convenient plot device.
Case in point: when Magneto attacked the President in "Tomorrow People", it happened on the White House lawn in Washington; when the rogue forces take over the US in "Grand Theft America", they chose the nation's capital as the location for their public executions of the Ultimates. By all indications, it looks like the heroes will be taking the fight to D.C., for the big finale of Ultimates 2. I'd say that in the UU, Washington is given just as much significance as NYC, even if it's not used as a frequent setting for more regular stories.
I think New York is practically a non-issue in the UU; USM and UFF could take place in any other major urban area, and the stories would remain fundamentally the same.
I don't believe the same thing could be said about NYC in 616.