Gath- What does it have going for it?

[Agema]

If you're going for a bless I'd tailor it just to the cap-only units. Without bless the Levites are merely decent medium-heavy infantry. Turning them into anything really useful with bless is just too expensive. They'd be best used to reduce upkeep when mixed with Gadites as your basic line infantry. If they've got some Regen/Reinvig, that's not a negligible bonus. With +4 protec from E9 bless they'll be very damage resistant, which gives plenty of opportunity for a modest N bless, even 1HP a turn, to make them significantly more durable early on.

I'm not very sold on Benjaminites. They've got a bad missile weapon and they don't have the shield/protec to survive melee adequately, which means they don't really fulfill either role adequately. The shortbow armed troops are marginally more useful as archers, but their stats are truly awful. I'd think about mostly ignoring missile fire (maybe until flaming arrows arrives?), unless good indies show up.

There are two very solid infantry types, Zebulunites and Gadites, the main difference being spear or sword. Spears are okay against low protec enemies, swords better against higher protec. Asherites are better than Gadites on the BF, but with mapmove 1 they possibly reduce your strategic options too much.