In Super Mario Bros.

I know its hard, but if you had to pick one...I would have to say Super Mario 64, and Mario Brothers 3 at a very very close second.

Of the 2D games I would say Super Mario World (but pretty close with Super Mario Bros. 3 and Yoshi's Island). 3D definitey Mario 64.

Hard to choose between the 2D and 3D games because they are so different. But if I had to I'd say Mario 64.

Mario 3 hands down. Such a great game and never gets old.

I would choose Mario 64. It is hard to choose but definitely Mario 64 is my favorite.

Mario 3 because it was the second i played and i used to play it constantly.

I can remember along time ago(before Kindergarten) i used to wake up Put in Mario 3 play the first three levels and have to stop to go to my grandma's. (my MOMMY had to go to work same as DADDY) so i couldn't wait for the next day do i could play the first three levels again.

I forgot about Mario World. I loved that game. But I still have to say SM64.

Man, now THIS is a tough question. SMB 3 rocks, SMB 2 rocks, Paper Mario 1 and 2 rock....

Honestly, it's probably a toss up between SMB 3 (which in my opinion squeaks by SMB 2.... I know you all disagree with that, but oh well) and Paper Mario: The Thousand Year Door.

Now I know it's an RPG, but they just threw so much cool stuff into that game. Tough choice... but it's between those two.

...

Overall... Super Mario 64.
Close second: Yoshi's Island

Man, now THIS is a tough question. SMB 3 rocks, SMB 2 rocks, Paper Mario 1 and 2 rock....

Honestly, it's probably a toss up between SMB 3 (which in my opinion squeaks by SMB 2.... I know you all disagree with that, but oh well) and Paper Mario: The Thousand Year Door.

Now I know it's an RPG, but they just threw so much cool stuff into that game. Tough choice... but it's between those two. Well, I would vote for Paper Mario (64)!!!! I really didn't like Super Mario 1-3 or World 1 and 2 because I am an RPG type of gamer...............

I did love both Paper Marios, as RPGs. (best RPGS IMO) But I love Super Mario 64 as best Mario game.

I actually am starting to crave (haha) SMB 1 as the best. But I only like it if it has Duckhunt on the same cartridge for some reason that I don't know why. I love my zapper I just bought.

My favourite "mario" game is Mario RPG...it's amazing. Close second is SMW2 and then SMW. The best on NES is the original...didn't like the second and third much. Mario Kart rocks too.

I guess Im just old school, but my fav. mario games for NES, in order are: Super Mario Bros., Super Mario Bros. 3, and Super Mario Bros. 2. Im not a big SMB2 fan. But the first one is still to this day, my all time fav. game. Mario never gets old. that and Zelda but this isnt about Zelda so.. yeah.

EVERY LAST ONE OF 'EM !!!

In terms of sheer life affirming brilliance I'd have to agree with the majority of you and say Super Mario Bros. 3 and Super Mario 64. Super Mario Bros. 3 was the first video game I ever owned and it rocked my world.

I'd say SMB3 is the greatest game of all time, let alone of the Mario series.

Mario 64 then Mario 3 then Super Mario World but they all rock

Agreed completely, although it's very hard to tell which is first and which is second.