Cthulhu OR. World War 3?

So I've been wondering. Each one of us is obsessed with the apocalypse in our own way. Either preparing for it or trying to stop it. It seams no of us can get the end of the world out of our minds. So if you had the choice to start off the end of days. It comes down to not so much would we do it, but which kind of apocalypse would you prefer. So here's an example, you can chose between either.

Using dark magic to rip a hole through the thin fabric of reality flooding out real with eldritch nightmares and elder gods. Who will lay waist to our city's, devour the weak and turn the rest into brainwashed cultist. In true Lovecraft-yen horror fashion, all of humanity will be driven mad by dark knowledge and ancient magics not meant for minds of mortals. But hey there's magic and maybe so sweet cult orgy's to look forward to as you forever worship the dark god Cthulhu.

Or You get to launch the first nuke that starts off world war 3. A Quick exchange of nuclear power that in minuets render the earth from lush fertile lands to irradiated wastelands. Those who dont die in those first few seconds from nuclear fire or days to weeks later from slow harsh death of radiation poisoning. will face a life of scavenging and surviving on scraps. where a letter of clean water is worth more then a kings ransom of gold and jewels. not to mention where toxic waste will lead to inevitable mutated horrors the like of which will fill your nightmares and rip your intestines out through your nose. It basically fallout with out the pip boy and cool 50's aesthetic dieselpunk aesthetic. There could also be zombies, just saying.