Face-Off: Slenderman vs. Jeff the Killer

These are the two most popular creepypastas around the web, which one do you fear the most?

Note: The author can't be held responsible if the entity summoned was to busy for you at the moment, or if any of the following creepypastas cause material, psychological, physical damages

Try at your own risk!

List: https://www.imdb.com/list/ls092429470/