Originally Posted by
Revolutionary_Jack
That's kind of moot in the context of movies. As a rule, movies were, and movies essentially still are, 1 Villain per Movie.
-- We forget that Loki was only really Thor's main villain in one movie (Thor 2011). After that it's been Loki + Chitauri (and both are servants of Thanos as outed at the end of Avengers 1), then Malekith with Loki as miscreant who tags along in The Dark World. Then Loki isn't a villain in Thor Ragnarok nor in Avengers IW. He's now a protagonist of a TV Series where he'll probably be reinvented as an anti-hero. In the comics, Loki has become Venom-ized, or even Magneto-ized, utterly defanged of villainy.
-- And Gorr the God Butcher returned in Aaron's final King Thor story which left a backdoor for his resurrection for later writers to use. So it's too early to say that Gorr can't be used in a regular basis.