Faction strengths?

[Grade_A_Beef]

Can anyone give me a rundown of all the faction styles and their strengths compared to other factions of similiar style?

I understand that Macedon, Seleucia, and Ptolemaics (Epeiros too to some extent) each have different regionals and some unique units, but I can't tell what makes Macedon and especially the Ptolemaic recruit lists better than the Seleucids (which is just huge).

Also I don't understand what kind of advantages the Suromatae have over the other two nomad factions. Sauka gets decent infantry after reforms and Pahlava gets the super heavy catas......but the Suromatae.....yeah.

Pontos, Armenia, and Saba all have different styles but I have no clue how to play as them. They don't seem to have any unit advantages over their neighbors.

Nice exception would be the Getai, who are a breath of fresh air whenever you fight them or use them, seeing as they can fight so many neighbors with different tactics and have their own unique ones as well.