User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-50.80.96.33-20130107194334/@comment-1683193-20130109063942

Forerunner firepower is billions of times better than Reaper firepower going by what we've seen of thier ships.