Well, since we're generalising:
Here 'in the West', our storytellers focus on formula. They know the three acts, character arcs, season cliff hangers, and all that Joseph Campbell stuff back to front.
Movies like Iron Man are extremely formulaic, and easily predictable (did anyone here seriously not guess that Obadiah was the bad guy?) but enjoyable none the less because it's designed to be.
We rely on it very heavily - the industry is not set up to encourage originality, and movies released will revolve around a few current story templates and a few carbon copy characters.
But in the end, formula is a good thing. Without it movies are almost certainly going to be an unstructured mess.
In contrast Anime focuses on creativity - often running more like a 'stream of consciousness'. I read somewhere that Japanese productions are rarely the collaborative effort we see over here, but are controlled by the vision of a single person - and that makes perfect sense to me. Characters are introduced on an author's whim resulting in large casts, many unrelated themes are explored, and the world rules bend to allow any indulgence. Few have very strong plots, and even those that do often will often lose sight of them with long fanciful detours - sometimes permanently. I challenge anyone to predict an Anime's end.
I enjoy Anime now and again when I'm sick of guessing correctly, beat for beat, the final two acts of a movie.
When I've seen enough world weary anti-heroes defeat a clearly evil opponent, watching an Anime can be a breath of fresh air - enhanced with the novelty of a different culture/viewpoint.
That is why I own every Miyazaki film; because they are such a delightful change of pace. No plot, no goal, no 'ticking time bomb', no epic scope - just a wildly creative and enthralling world I can inhabit for an hour or two.
Of course my favourite movies/series in the world have come about when Anime makes an effort to structure the story, or when Hollywood decides to go out on a limb and try something new - because they often end up a perfect balance of the two extremes.
I think Naruto has enjoyed so much success because, while being super creative, it has roped itself in and crafted perfect intertwining themes and character arcs. If you ignore the fillers, and some of the pacing of the Anime vs the Manga, it is very well paced and keeps on message almost all the way through.
Or things like Fantastic Mr. Fox, Where the Wild Things Are or even Scott Pilgrim - they try something new, while retaining that natural underlying formula - and almost create their own genres.
...or then again, maybe these are just the racist generalisations of an ignorant gaijin.