Czario
Rightful ruler of the kingdom of Russia!
- MarioWiki
- Luigi 64DD
The problem is that it really wouldn't be fair to say that NSMB Wii, 2, and U are Super Mario Bros. 6, 7, and 8. That would almost be an insult to the Super Mario Bros. series since every game in said series is very original and different from the others (with the obvious exclusion of Lost Levels, which can be considered an expansion of SMB). However, NSMB DS had enough differences from the earlier titles that you could reasonably call it SMB5. Then the rest of the NSMB series would have to go in some sort of other category. So, if you were to give honorary titles to each game, it would go like this:
The rest of the NSMB series complicates this, so when I've thought of stuff like this before I'd generally not include NSMB DS, making any potential "reboot" be Super Mario Bros. 5.
Super Mario Bros. - Super Mario Bros.
Super Mario Bros. 2 JPN/Lost Levels - Super Mario Bros. Expansion Pack
Super Mario Bros. 2 USA - Super Mario Bros. 2
Super Mario Bros. 3 - Super Mario Bros. 3
Super Mario World - Super Mario Bros. 4
New Super Mario Bros. - Super Mario Bros. 5
Super Mario Bros. 2 JPN/Lost Levels - Super Mario Bros. Expansion Pack
Super Mario Bros. 2 USA - Super Mario Bros. 2
Super Mario Bros. 3 - Super Mario Bros. 3
Super Mario World - Super Mario Bros. 4
New Super Mario Bros. - Super Mario Bros. 5