Most boring faction to play as

[Ibrahim]

The Saba campaign is good, when you like to roleplay and build up a strong economy. The only sad thing about them, that you can't field good "native" army.

you can build a good native one actually.

the way to do it is to rely on archers and slingers, with a core of infantry and cavalry for support of the archers. re sea axemen, and medium cavalry are very good for that. give them a few chevrons, and things will go well. and as most of your enemies will field light units, at least till later, the archers should do heavy damage.

archer spearmen come to mind, but sabaeans can do well in melee (for archers).