Thread:EvilLamp/@comment-2175012-20160220163731/@comment-26884760-20160221124515

well, depends really.. if you are talking purely about mainstream Christianity as we see it in the modern era then he can be argued as a CM, since by being a fallen angel he has chosen to use God's gift of free will to do harm, it isn't really God that made Satan evil in that scenario but rather He gave Satan the choice to do as he wished.. thus Satan willingly decided to try and ruin Creation.

the many other branches of monotheism are usually considered their own religions (Islam, Judaism, Universalism etc) - they may follow the Bible in different ways but they can be considered separate theologies that share only one real core principle (worshipping a singular entity, known as God).

In general if Satan is seen as a fallen angel he's usually a stronger contender for CM as that strongly implies free will - this is the view seen in our modern take on mainstream Christianity.

If one follows a belief in Hell (which was a medieval belief, the original texts spoke little of eternal suffering etc) then the idea is Satan is so vile God (a benevolent entity) has to imprison him in that realm, not out of malice but out of necessity as Satan would ruin Creation otherwise.

TLDR: basically the modern (medieval to present) branches of what we view as mainstream Christianity tends towards a CM Satan, the other monotheist religions can be counted as their own faiths (as they should) and thus their take on Satan is not necessary if you are simply questioning the Satan of Christian theology.