Playing god
OK, so a bunch of characters want to appear in front of humans (in our universe) and pretend to be the Christian God. Which one of them can succeed in being close enough to omnipotent/omnipresent/omniscient so that people would believe that he/she/it is God? For the sake of this thread, we'll assume that for some reason humans won't have any former knowledge of these characters (ie they won't recognize that Odin is well...Odin, and the god of Norse mythology).
1. medieval Europe
2. modern America
3. Star Wars
(in no particular order)
Galactus
Odin
Superman
A celestial
Utah
Darkseid
Eternity
Thanos
Thanos w/IG
LT
Post Retcon Beyonder