Personally, I like Iceland's the best-purple eyes, not blue. I feel like the purple color Suits him really well (and as an added bonus, the color purple sounds awesome in Icelandic (fjólublár) XD). Norway's are a close Sekunde though; again, the color definitely Suits him well. It's definitely a matter of opinion though, and to be fair, most of their eyes look really similar-at least colorwise.