Being a 90's kid, and someone who has lived with both parents in separate homes, I grew up in two different households with, incidentally enough, Nintendo on one side and Sega on the other. So while people were debating on which was better, I was simply enjoying them both as one. However, if I had to choose one....Well, let's put the two into consideration:
Console: Oh the Irony, the best way to describe their console wars with each other can actually be a retelling of Eggman's victory and downfall from 175 to 200. They appeared with the Sega Master System, that the NES ALWAYS beaten down. Then arise the Genesis, that knocked it out the NES out of the park, making Sega victorious. ...Then the NES came back as the SNES and battled Genesis again, and for the most part won. Then Sega went somewhat insane and mentally deteriorated from this and made constant consoles, then immediately scraping them when the SNES constantly wins, and it just got worse and worse until it all came to a head, and Sega, for the most part, lost the console wars completely. ...The difference is that they had created the Dreamcast, which was basically, in my opinion, their most powerful weapon against Nintendo when they suffered their final defeat against the N64, AND the Playstation/Playstation 2. (Which was basically the Ixis Naugus of this story.) While Eggman was using a Spider.
I think it's pretty clear who won this battle.
Nintendo +1
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Games: To make this perfectly clear, I am not comparing by franchises, as that would be pretty unfair. Nintendo had Mario, Zelda, Kirby, Donkey Kong, Star Fox, Pokemon, etc. Sega only had Sonic, Night, and House of the Dead as real franchises. ...That said, If we throw those franchises out of the picture, we get to see the very cores of both of these companies, and which core is better? ...Well, they're both pretty tied really, It's hard for me to say which is better in this category, if not because I've always treated games with a little slack, then because I can't for the life of me remember any of them outside the obvious ones, and the graphics for both were pretty evenly matched. But if you want me to choose...I'd probably say Sega. The problem with Nintendo, it's Kyptonite so to speak, is that it filled to the brim with its franchises. Look outside the franchises remove every last one of them, and the amount of good games drops. That's not to say that it doesn't have good non-franchise games, nor that Sega is any different, but it's the amount of good games that makes the cores shine bright, and Sega's brighter, if only slightly. If they didn't lose their minds when it came to their consoles, that may have been a challenger in the console wars still. Considering the games that a spewed forth nowadays, they might have even been the superior race if they kept up like they did. ...Or they would fall into the same trap as everyone else, who knows?
1+ Sega.
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Mascot: ...I wouldn't dare even so much as BOTHER with the popularity of these two, nor dare state who did their job better. Mario and Sonic are both Icons of the 90's, and let's face it, both are suffering the exact same way nowadays. It's just that it happened to Sonic faster than it did Mario. I'm not going to compare it by that because that's like comparing who got killed earlier or later by a slasher like Jason Vorhees or Freddy Kreuger. You can argue in the afterlife all you want guys, but the point will always remain that you're both dead, and the stronger man is the one who is still alive at the end of the day. So as far as I'm concerned they're both tied in their popularity and game activity.
With that said, there's only one other way to compare the two:
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