okay, franks cant compete with huns eco, huns will be able to make more knights and imp faster than franks - huns betterFranks, mongols and spanish are better pocket civs than huns imo.
My setup would be: franks pocket, huns and mayans as sides.
mongols can do decent vs huns but still huns eco is better AND huns make only 1 army all the game, the change of mongols to mangudais are very slow, in a high level game you lose the game there.
and about spanish, huns have the best eco and will be able to flood more knights and imp faster again, just like franks, the vantage of spain is AFTER IMPERIAL, but its another discussion.