To echo the Interpreter, Idlewild is a fantastic amusement park almost entirely for kids.
Also consider: is Planet Snoopy really better than The Magic Kingdom's Fantasyland? Universal's Islands of Adventure's Seuss Landing? Paultons' Peppa Pig World? LEGOLAND Parks? Maybe it is... But don't allow yourself to accept the Amusement Today "awards" without looking at how those awards are distributed and why?
I've often asked how Cedar Point fails to place in best food, cleanest park, best entertainment, friendliest employees, best dark ride, best water ride, or best landscaping, but somehow manages to snag best amusement park. Maybe I'm wrong, but shouldn't the "best amusement park in the world" place first in all of those categories, or at least one?
Also, what's so darn great about Knoebel's Amusement Resort that makes it the 2nd best world? I've never been there but to me it justs looks like a small, humble amusent park with a couple of rides. I don't get it, can someone please tell me! I'm curious.