Not many of us expected much of Iceland in the beginning, but settling the whole of Greenland to themselves was a pretty smart move. Beyond that, they gained a striking reputation as efficient killers, dispatching the Irish in no time at all, and wiping France of the map in barely more than a single part.
They suffered from carrieritis for much of the late game and progress against Sweden was dramatically back and forth, but any civ that took African land from the Boers is worthy of respect.
Dying on exactly the same turn as Sweden, I guess this community vote is the closest we have to objectively deciding who came 7th and who came 8th. But in our hearts, both civs went into the night together, and did so with their heads held high.