Best platform fighter, hands down. Really solid controls, solid online, tons of single-player content, and an ever-growing collection of Steam Workshop material that keeps me hooked.
Honestly, the scariest the franchise has ever been. A lot of that scare factor is lost once you learn how to handle the admitedly simple AI, sure, but this is still one of my favorites in the franchise.
People dismiss this one far too much. While it's a fairly standard Mario platformer, it's still a wonderful time and has a lot of charm to it. Tons of fun power-ups and challenges, even if its replay value isn't as crazy as some of the later NSMBs.
A great game. Some kingdoms feel like they have squandered potential, and most of my post-game was spent on Balloon World rather than hunting down moons, but I still had fun with the main campaign.
Not a stellar platform fighter - I totally understand people's issues with its floatiness, and the grind gets downright unfun at times - but it's got promise.