For me, the list would include the following games:

almost all of them, with hotel mario as an exception. yes, i've even played the dreadfully boring "mario is missing" and "mario's time machine" games.

Do unSuper games count? I guess so, if Golf/Tennis/Party are in the OP. Except where noted, I enjoy all of these:


Mario Bros. (arcade, Atari, and NES versions)
Super Mario Bros.
Super Mario Bros. 2 (Japan version)(have never felt like taking a serious try)
Super Mario Bros. 2 (USA)
Super Mario Bros. 3
Super Mario Land
Super Mario World
Super Mario Sunshine (did not like)
Paper Mario & the Thousand Year Door
Super Mario Galaxy (did not like)
Super Paper Mario
New Super Mario Bros. Wii
Mario Party 8 (it's OK... but I don't have anyone to play with)
Wario Ware Smooth Moves (it's OK... but I don't have anyone to play with)
Wario Land Shake It

Waaaayyyy too many to count. I can't say I played all of them. But I played pretty much all of the main series Mario platformers. The spinoff titles, I played a mix bunch of them. I played most of the Mario Kart games, but others like Mario Party, I mainly played Mario Party 4. I tried to play Mario Party 8, but hated that game so much, and the later games look worse. I haven't played too much of their sports titles, however, I did have a lot of fun with Mario Golf Toadstool Tour.

 I personally have played for the 8-bit NES, Super Mario Bros, Super Mario 2, Super Mario 3, 

Super Mario 3, Super Mario Sunshine, Super Mario Galaxy, Mario Party 4, 5, 6, 7, 8

WWhat, nobody played Dr. Mario?

i played it at a friend's house, but that was the only time.