it doesn't matter if FAA or EASA, you just need to have an ICAO licence and you do the conversion for each CAA.
In south america there are so many N airplanes, so if you go there with an FAA licence you can get more chances to fly an N airplane and you don't need to convert.
thanks for the reply, but in case i don't like latin women? any chance to fly a twin otter or a caravan over some lost island?