payn
Glory to Marik
The Pixar fatlings!
The Pixar fatlings!
This. As a unifying framework for a large base to tinker with, and have a large audience to use that tinkering, 5e can't be beat.I like how easily it inspires house rules, and the ease with which it handles said house rules.
I like the flat math.
I like the 3pp products its existence has resulted in.
This.Another one: multi-classing. I know that some folks dislike it on principle, but the way 5e incorporates it is simple, elegant, and pretty successful.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.