You forgot the most recent-Super Mario 3D Land.
But the most engaging and fun filled Mario platformer is clearly Super Mario World! Great world map, boss battles, and overall variety!
LOL Hotel mario!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The only thing I really don't get is why Super Mario Galaxy 1 isn't anyone's favorite. Is Super Mario Galaxy 2 that much better? I mean I'm just surprised it hasn't gotten a single vote (actually I'm surprised SMB 1 hasn't gotten one either).
I guess my favorites go like this...
Super Mario Galaxy 2
Super Mario Galaxy
Super Mario Bros. 3
Super Mario Sunshine
New Super Mario Bros. Wii
Super Mario 3D Land
New Super Mario Bros.
Both Super Mario Galaxy games were equally fun and addicting. I really enjoyed the graphical style and the amazing gameplay of those games. It also had some of the best music in the Mario series. Then there's Super Mario Bros. 3. A pure classic that set the standard for Mario games. The music was fantastic and the levels were great. It also had some of the best abilities in Mario history. Super Mario 3D Land is fun and all, but just sorta lacks in musical variety and themes. The gameplay is just as good as any Mario game and the levels are great. Super Mario 3D Land is just a great tribute to the Mario series but fails when it comes to abilities (They seriously overdid it with the Tanooki stuff...). I guess it's not the best Mario game, but it's up there. After that I'd say the New Super Mario Bros. games and Super Mario Sunshine. The NSM games were fun and a perfect throwback to the 2D Mario games while keeping it well, New. And I can't really say much for Sunshine since I haven't really played through it beginning to end. Although it did have a perfect atmosphere and some damn good music. Everything about Sunshine was new and refreshing. I also wish more Mario games had a deep of a story as Sunshine.
I endorse all of your choices but why no Super Mario World?