Optical
The Fall of the Eleventh
Definitely the Celts here, although the Dutch are a close second.
Here is one more vote for the Netherlands. It is exciting to see another new entity in the game that survived into modern times. This add will make colonial scenarios even more interesting. Though the old ones are certainly fun to play, what exactly did the Celts contribute to Western Civilization to give them this status over other powerful modern states, such as Israel, Australia, Turkey, and Brazil?
Israel aren't really significant enough to warrant being put into the game, IMO. They spent most of history getting conquered and disepersed by many many other empires. They would work better as a religious city state I feel (Jerusalem).
I agree that Israel may not be one of the most impressive civilizations as compared to the US, Germany, or China. However, they certainly accomplished more than Polynesia or Senegal, just to name a few. Seems to me that if Korea and the Vikings earn a spot, so should Israel. Who else has defeated four Arab states all at once (1948 War)? They even have a possible Wonder to their name, the 1st or 2nd Temple. What wonder did the Celts build?
Modern Israel is "just an extension of USA", as seen from "donations" given to Israel from USA taxpayers. Can Israel stands on its own? Just ask USA Taxpayers to force their government to stop "donating" to Israel and we shall see. So Israel as religious City State is cool, but foll blown Civ? Arab, Turkey, Persia, Egypt are more representative of Middle Eastern Civilizations by far. Sorry if this ruffled some feather. Feel free to erase this. Just stating some informed opinions.
but my serious digression here is probably too far from more fun discussions about CIV5.
As i am dutch,My choice seemed pretty clear.....until i remembered that the leaderhead speaks the language,and all my civ 4 nightmares came back.I don't know for the other civs but that was absolutely HORRIBLE.