Irkalla
ENTP POWWWEEEEEER
You don't even have to take a vote, people are crazy about Poland on almost every civ forum. Guaranteed, Poland would get the most "likes" of any civ you'll ever post.
What about the Zulu? That's another idea I'm kicking around.
Also, wrote the greeting for Eannatum that I'm going to try to voice at some point.
"Silim! Eannatum i-men, ensi Lagash-ak, lugal Kiengir-ak. Inim-shar-ga."
"Health! Eannatum be I, city-state-king Lagash's, empire-king Sumerians'. Discuss[cohorsion]"
Translates more properly to something along the lines of "Hail! I am Eannatum, Lord of Lagash, the highest king in this land of civilized kings. Come, let us discuss our business."
I'm no expert in languages that have been dead for 4,000 years though.
I'll probably rewrite it a bit to sound a bit more... Regnal? The Sumerians were known for being rather Laconic in their writing, but they may very well have spoken a different way. The Akkadians, in contrast, were known to use many many many euphemisms to season their language. There was no act that could be written as one word.
For example, Gilgamesh tells the concubine Shamhat to have sex with the wild man Enkidu to civilize him and tear him away from his wildness. But the Akkadians wrote it something along the lines of "Go, Shamhat, and perform for him the task of Womankind!"
By the way, I know exactly how to make the leader music work and to make sound defines and such work... in theory. The problem is, I'd have to have people manually install it as a DLC, and that would suck.