Interesting debate here. In my opinion, MK7>MKDS>MK64>MKDD>SMK>MKW>MKSC
Also,
#4. Super Mario Bros. (1985, NES)
Maybe the most important video game in history, Super Mario Bros. and the NES made Nintendo a household name in America and Europe, and then one of the largest electronics companies in the world. It revolutionized games itself with its simple gameplay yet imaginative setting; find me one platformer without its influence. While Mario was in several older games, this one made him a pop culture icon nearly at the level of Mickey Mouse and Bugs Bunny, and to this day remains among the best-selling games of all time. So why only fourth? Like Donkey Kong at #10, it hasn't aged quite as well as its successors. Compared to the other big Mario game for the NES, Super Mario Bros. 3, it has slippery controls and poorer graphics (even though both were 8-bit). However, it's undeniably a fun and influential title that millions play to this day.
If Super Mario Bros. created the series, 3 put the flesh on the bones. Elements like a world map, themed levels, and a ton of new enemies still used today all originated here. Over twice as many levels as Super Mario Bros. and the two SMB2's, it was bigger than ever, and pushed the NES nearly to its limit. Unlike the Lego statue characters in Super Mario Bros., the characters and worlds looked alive and animated. Combined with excellent level design and a collection of new items, it's earned its spot here. But Nintendo seems to like it a bit too much. A new Mario game advertises nostalgia and fanservice? Don't expect Tweeters or Rexes, expect Boom Boom and the Raccoon Suit (and yet they never bring back Kuribo's Shoe). In addition, unlike Super Mario Bros., it didn't have the same influence on other games; all it really did was make a ton of money. However, its main problem isn't the game's fault itself; it's Nintendo's obsession with trying to make every Mario game a copy of it. Also, The Wizard was terrible.