It depends on what you want out of a system. I love FATE because it feels alive to me. I love Dragon Age because the AGE system is so much fun to play. I love Savage Worlds because exploding dice and high-concept pulp action is incredibly fun.
If you are into storytelling, Fiasco and Always/Never/Now are amazing, and so is Mythender.
I know this isn’t especially helpful in a direct way, but I hope something here will spark an interest, and you can go look into one of these systems at RPGgeek or DriveThruRPG or one of the publisher’s own sites.
And remember: A good GM can overcome a bad system, but nobody has fun with a bad GM.
Certainly, but some games make it much easier to GM than others. After years of playing rules heavy games which require huge amounts of prep and switching to rules light, low prep story games it turns out I’m a no shit GM. Who knew?
Too many, largely trad, games encourage making GMing an ordeal for all but the most hardcore gamers. There are better ways.
Apocalypse World/Monsterhearts forever!