Iceland
Never had any problems with Icelandics. On the contrary, initially a bit reserved, but the nicest of people when you get to know them. In many ways similar to Finns or even Norvegians.
I call it "Village mentality" as countries with small population resemble small villages in their social structure, thus outsiders are often distrusted.
Sure being Icelandic gives one an advantage, but can you with straight face say that UK companies do not give preference to natives speaking native language? I think this applies to most companies around the world.
tata