I think I prefer Arverni. They have better colour and most of their units look better (though the aedui Teceitos are cooler). Their initial army also does'nt have to worry about sending Lugoae against Bataroas.

Besides, Aedui are weaklings who does'nt deserve to rule the Gaul. They should be burned! (I was first thinking about expelling them to Rome, but that would have been too cruel.)