Mario is one my favorite platforming series, but I felt that the Mario Maker games never quite reached the level of innovation of LittleBigPlanet. (Both in the tooling and the community.)
It looks like some users did the work to archive LittleBigPlanet, too:
People came up with all kinds of hacks to push the engine to its limits. They made FPS games, top down Zelda dungeons, and all kinds of crazy stuff with LBP. It was awesome.
I haven't checked out LBP's spiritual successor Dreams yet (I don't have time to game lately), but I've heard it's phenomenal.
That said, I do enjoy watching others try to clear some of the diabolically difficult levels that Mario Maker creators design.
I looked into Dreams a while ago. Dreams is more a general game engine than a level editor, including a highly unusual rendering engine that is not based on polygons. But apparently all this innovation hasn't translated in much success.
Typical archive.org to the rescue again.