I got the international forever because it was one stamp and it wasn't obviously American like all my other stamps.. Flag.. I wanted to avoid our flag to some areas because not everyone likes us. Because I want to limit exposure I started with the Forever and did pick up some flower regulars.
I think I'll go find some mellow American stamps for the Internationals. Mix it up.
You were right on the money with the international forevers (the ones with the globe). They are everywhere and nobody in foreign countries cares a whit about them at this point. This is a very good thing. It's one thing to send a stamp that's unusual or limited-edition within the U.S. or to an entity that has a known good, reliable postal system. But there are postal employees in places who love stamps and if they see something unusual they might give the envelope some unwanted attention. Don't be that guy.
Now that said, I've chatted with some guys who say how much they love getting unique stamps and I'll often send some of the unusual ones to them. On the other hand, if I'm sending mail to places whose governments are hostile to the United States, I'll forego the AirMail stickers and just use electronic postage (or a meter PVI sticker), with the envelope sealed by packing tape. It's a fine balancing act between securing the envelope and getting it through without having extra attention drawn to it.