Hard to pick out the best overall but I like how the bosses in Mario + Rabbids Kingdom Battle are designed, especially with Rabbid Kong and Phantom's gimmicks on needing to do a certain task before you can take them down (dropping the bananas and dashing the lights respectively). Bowser's Fury...
Super Mario World 2 Yoshi's Island, one of those games I say "fuck it" to 100% completion due to the levels having way too many completion requirements for me to want to bother. Makes me relieved that 100% completion for levels in main Mario platformers takes far less effort. Still, Yoshi's...
Opinion not related to pirating:
I'm not interested in competitive online gaming, I've watched a few YouTubers do it with games such as Call of Duty and even Mario Kart and they take it way too seriously and get mad a lot. I have more fun playing single player campaign games.
I'm not necessarily throwing this idea on you, and this may be an older game but there aren't any articles for the Donkey Kong Adventure challenges from Mario + Rabbids Kingdom Battle; yet there are articles for the main game challenges. Just a thought.
All I thought when making this topic was it would be interesting to see where people started with the franchise, I sincerely hope you're not implying what I think you are with that comment.