I actually think it's the best looking wrap they have done.
The gun thing is a non-issue for me. As Eddie pointed out, there is so much gun play at WDW already, personally it seems a bit hypocritical to say that gun is not OK, but the guns throughout POTC, or the ones you operate yourself on Buzz Lightyear, shooting gallery, or any of the other many representations of guns throughout the parks, are OK. A gun is a gun, "vintage" or new.
I'm not any particular fan of guns, don't get me wrong. But I'd be much, much more worried about the gun laws and general climate (especially in Florida in particular) with REAL guns than I would be a graphic on a poster.
As to the aesthetics of wrapping in general, I kind of agree. I can see both sides. I believe they only wrap one at a time, so it's not like it's the whole fleet. And let's face it, as much as I/we love 'em, they do scream 1960's.
I think the reason I like this one overall in particular is the dark colors. I wish they'd really paint the heck out of them - the pale color stripe on white we have feels so dated and tacky. I'd love them fully painted in vibrant, slick, solid colors - red, blue, black.
Of course, the eternal optimist in me says, "Hey, maybe if they get enough response to advertising some other Disney department will help pick up the cost of more monorail fun", while the pessimist/conspiracy lover in me wants to think it's Disney taking a dig at Universal by using Marvel in the resort in any way they can.
In truth, I'm sure it's much more simple than that...but I have to say, when I first saw this wrap I was much more impressed than any I had seen before. And I don't even particularly care for the Avengers or Marvel (I'll probably see it on Blu-ray, I have Captain America but I haven't even watched it yet).