Wich is the best native civ?

Hey guys,

I asked some days before which civ i should play but i changed my mind a bit in term of playstyle. I would like to Eco First and then attack in the 3 age (Fortress i think). I dont really like 50min games but also i dont like rushing that much. I would prefere a more balanced gamestyle. Wich of those 3 (aztec, iro, sioux) would be the best Option for me?

If its matter i only Play 2vs2 with my friend and he plays japanese and i love cav :-)

If somebody got some idears pls Share them with me :-) would be awesome if you already can give me a Link to a Guide.