I personally think that you should gain experience for taking out towers. They take a lot of damage, they can deal a lot of damage, and right now I get nothing for taking them out. This should change. I think we should see the following:
Rook's Tower of Light: Exp similar to priests. This tower is fairly weak and doesn't do a ton of dmg.
Arrow Tower: Same experience as Catapultasaurus. Strong and fairly deadly.
Tower of Light: Same expeirence as giants. Very strong and very deadly when connected to other towers of light.
Fort: Same experience as giants. Very, wery strong, but not very deadly.
On the front of gold, in build 1a, who cares. I already have too much, but if the gold from killing demigods, use the above to tweak gold as well. Thoughts?