Building bonuses

Spy buildings give most plunder BY FAR
def buildings give +5% (?) plunder (they might regen slower too.....I forget lol)

Balanced give an extra hit but -5(?)% plunder
Attack buildings....give you attack stats

 

I'm probably wrong by quite a bit on those.....

 

Balenced give 2 more attacks, but take an extra 5 minutes for full regen.

Defensive buildings have 5% more plunder than other buildings of the same tier.