Titans or Dragon-Golems?

If the game is long, only Titans are viable. Dracoloths cannot be resurrected either during or after battle, which makes them too unreliable. They don't cause morale problems, and in the late game, army morale is quite high, and having the first turn can be decisive. I'm sure that in the Fragile World, they force you to use these units, at least in part, because they are more difficult to incorporate into battles against huge armies.