Doomsday at his best makes Amazo his gimp. I mean, honestly, Amazo lost to Batman and Nightwing at full power. even then, he constantly lost to the JLA, even when they didn't have Superman or Green Lantern. Doomsday beat friggin' Darkseid and killed Superman, not to mention turning Martian Manhunter into mince meat. Doomsday 94/100.