That's interesting. I'm the other way 'round. Mostly because American English has managed to confused the hell out of me. Pronouncing (or softening) "t"s as/into "d"s means many Americans spell accordingly - Tao becomes Dao.

Then there's the impossibility of popular phrases (individual words such as "movie" don't bother me much at all). "What are you hungry for?" simply cannot be. It makes more sense to ask what one feels like eating. Same with "I'm excited for..." Just doesn't make sense. We're excited ABOUT a thing, not FOR a thing. The American propensity to fake it because PR annoys me no end, too. Every time I hear "I'm thrilled to..." I do a little mouth-vomit. There's just NO authenticity behind a statement that starts with those words.

Many more such nuances. Like "He disrespected me" instead of someone being rude, curt or otherwise unfriendly to another (respect is earned).

There are going to be as many opinions about this stuff as there are people.

I agree. Now that I think of this, I realize that there are lot of americanisms I would never use. Things such as "I'm gonna" or "dude". I feel it doesn't sound right when you have a heavy foreign accent. Maybe the best thing to do for a non-native English speaker living in the "global world" is to target an English free of local idioms, and a neutral north-american accent.

you might even say there were as many tongues as there are speakers.