Round table

Which skills are you willing to take at level 2 instead of Expert Armor?

earth, air, tactics, logistics, offense - basically a standard set. Also, wisdom, water, and intelligence to avoid ruining the tree. Everything else is garbage at this stage, IMHO.

Added after 1 minute

Sanin, Leadership will definitely be better, as it will be useful in battles with neutrals, unlike resistance, which can simply be dispelled by a black spell on the frontline unit.

I agree, but by week 4, there is often a counter-argument even for leadership.