Just checked stats - best range Saka foot archers next Cretans then Syrians and Persian haevy (last two have the same range). Cretans have 35 ammo others 25 or 28 so that is a big advantage plus their base attack is 6 (equal only to caucasian) they also have 6 armour (only syrians bosporans and roman auxilia have better) so I guess they are my favourite. Their only disadvantage is AOR as it was mentioned earlier.