As far as Switch goes Zelda beat outs Mario simply because BOTW and TOTK have elevated the series to a GTA type status on top of the impact they have had on gaming if it weren't for these two titles it's just be an easy choice for Mario, BOTW had more than 100% attach rate on Switch for the first few months of release something I haven't seen with any other game. Against any other line up of Zelda games the Switch line up of Mario games would be a default choice by far.
NES: SMB and SMB3 were monsters of the industry one helping return things from the crash the other being one of the first modern day mainstream killer apps, LOZ was a great game and a genre defining title as well but AOL's controversial approach wasn't on par with the other games here.
Mario
SNES: SMW and SMW2:YI continue the streak with the former building on what came before and the latter even spawning a spin off series, ALTTP is one of the all time greats but SMW2:YI breaks the tie here.
Mario
GB: Mario Land games as well as LA were great but like with the SNES Mario Land 2 and 3 with the latter creating a spin off break the tie.
Mario
N64: SM64 is the most influential 3d title of all time with OOT being the second most influential however MM is still good and breaks the tie for Zelda.
Zelda
GBA: Zelda very much cleans up here with Oracles, FS and MC while Mario didn't really have any new releases here.
Zelda
Gamecube: Sunshine while good struggled to match up to the high bar of other 3D Mario games while Zelda had two of it's most notable releases in WW and TP.
Zelda
DS: This is a bizarre one with a port of SM64 and the NSMB debut reviving the 2D Mario branch while PH and ST were controversial, while on paper it's a tie in practice NSMB's impact just edges it for Mario.
Mario
Wii: Galaxy duo speak for themselves, NSMB Wii is also there while TP and SS are two of the most notable Zelda titles SS is some what controversial although I like the game.
Mario
3DS: 3D Land was good although NSMB2 was a bit dull, ALBW is one of the best Zelda games released while TFH was a nice idea but a bit meh overall ABLW carries this one.
Zelda
WiiU: Probably the most odd platform out of all of them it has no actual Zelda game of its own but then it's Mario offering comes down to NSMBU and NSMBL with 3DW which like Sunshine is a good game but doesn't hit the high bar of 3D Mario games. That said the Zelda games WiiU has are remakes of WW, TP and of course the cross gen release of BOTW this is probably a tie.
Tie
Switch: See above
Zelda
So overall about even across all platforms.







