Blasphemous
Graulich
My suggestions as posted yesterday in the big ol' thread:
Conquering enemy cities should give a morale boost to the conquerors! How about the following, rather simple model:
When civ X conquers a city size 1 to 10, any unit belonging to civ X within one plot of the city receives 5 HP (with a cap of 100 of course).
When civ X conquers a city size 11 or more, units within one tile of it receive 10 HP, and units only within two tiles of it receive 5 HP.
When civ X conquers a city size 20 or more, every unit within one tile of the city has a 50% chance to receive 1 XP.
This should be enough to give a significant boost to an army immediately when it's sucessful.