Oh, I thought this thread meant like what is the sexiest nation in the world, as in, exactly that;
the sexiest nation, would have to be Brazil, I reckon - the nation as a whole, the culture, the clothes etc, are pretty damn sexy.
Nationality wise, I reckon Australian men are really fit. Australia in itself is quite a sexy nation (not as sexy as Brazil), but the men there are fine, although I've noticed the women don't quite match up (no offence Aussie girls, I know there are some beautiful Oz girls). But yeah, Australian men are really fit (ie. Lleyton Hewitt, Jesse Spencer, Heath Ledger etc).
I don't know where the prettiest girls hide out...Brit girls are meant to be quite hot though (or so visiting celebrities say!). I wouldn't know really. There are a lot of beautiful American women, but I'd say Russia has very beautiful women too. So yeah, Russia.