Sage or war hero or paladin.

Sage lets you be an Atm, with TM comparable to a bad heretic, and military to rival any core. Run higher def but not full turtle. Tools sci, housing sci, and military strength means you can run rax without sacrificing much. All around solid.

War hero. Avian had a +25% credit bonus, but dryad has a lot more than a +25% offense :p so credits will come hard and fast.

Pali, I think simply over powered this age, though through its breadth of advantages over any single strength. Half guilds means free rax if you want to play like that.