Map painting is difficult (which is good!) which factions make it easier?

[Shlazaor]

I really enjoy how the game makes conquering and holding regions a challenge but I was wondering which factions had the best mechanisms for map painting? For example the Seleucids/Ptolemaic Jewish garrison building seems to provide those factions with a unique advantage to help hold down the fort as it were. Which factions and why are best for a player embarking on the great challenge of painting the map in EB2?

[nvm]

A lot of factions are hamstrung in this term by recruitment pools or unique mechanics, but I feel I would indeed vote for Seleucids or one of the Greek factions, purely due to starting initial size, widespread culture and recruitment areas.