It's a really small dataset to do any real statistics for 2v2s. Read it as fun facts. Most of these games were played on random map pack with water as well, so that skewed even more the civilization picks.
Civilizations Picked (and won the game with):
mongols - 15 (8)
britons - 14 (7)
persians - 10 (7)
aztecs - 8 (3)
japanese - 4 (1)
huns - 3 (3)
celts - 3 (2)
mayans - 3 (1)
saracens - 2 (1)
vikings - 2 (1)
teutons - 2 (0)
chinese - 1 (0)
spanish - 1 (0)
Civilizations Banned (and won the game):
mayans - 31 (15)
huns - 26 (13)
vikings - 25 (14)
aztecs - 16 (5)
mongols - 14 (9)
persian - 10 (7)
britons - 5 (1)
chinese - 4 (2)
japanese - 3 (1)
celts - 1 (1)
spanish - 1 (0)
Winning combinations:
persia+mongols 3
persia+brits 3
brits+mongols 2
celts+japanese 1
celts+aztecs 1
huns+aztecs 1
huns+brits 1
huns+persia 1
brits+vikings 1
mongols+aztecs 1
mongols+mayans 1
mongols+saracens 1
Civilizations Picked (and won the game with):
mongols - 15 (8)
britons - 14 (7)
persians - 10 (7)
aztecs - 8 (3)
japanese - 4 (1)
huns - 3 (3)
celts - 3 (2)
mayans - 3 (1)
saracens - 2 (1)
vikings - 2 (1)
teutons - 2 (0)
chinese - 1 (0)
spanish - 1 (0)
Civilizations Banned (and won the game):
mayans - 31 (15)
huns - 26 (13)
vikings - 25 (14)
aztecs - 16 (5)
mongols - 14 (9)
persian - 10 (7)
britons - 5 (1)
chinese - 4 (2)
japanese - 3 (1)
celts - 1 (1)
spanish - 1 (0)
Winning combinations:
persia+mongols 3
persia+brits 3
brits+mongols 2
celts+japanese 1
celts+aztecs 1
huns+aztecs 1
huns+brits 1
huns+persia 1
brits+vikings 1
mongols+aztecs 1
mongols+mayans 1
mongols+saracens 1