Every year, the hashtag #RPGaDAY makes its way around the social medias, and gamers try their damnedest to answer each question every day. Most fail. I probably will too. BUT. I will try!
Today's question: Which RPGs are the easiest for you to run?
For me Savage Worlds is the easiest thing to to run due to a certain level of system mastery that lets me run pretty much anything off the cuff. The really wonderful thing about Savage is that you can scale difficulty by simply scaling the die type of enemies and NPCs, or by making them wild cards.
Next easiest I would have to say D&D 5E, simply for the fact that there are just so many resources out there to make a DM's life easier; Roll20, all the source books, and the whole internet. When in doubt in 5E, just have your players roll with Advantage or Disadvantage; it's that easy!