One of the first things that popped in my head was this web series called Worm by Wildbow.
There was an epic moment there an Endbringer and Scion that still lives rent free in my mind. I remembered shedding a tear because of how awesome that moment was.
Another was my experience in watching The Disapperance of Haruhi Suzumiya. Right now I don’t even know why it was such a great experience but I’ve been chasing that high ever since.