Hard to argue with this logic. It's a well known fact that Wii Sports is the greatest game of all time. And obviously all Nintendo fans agree that it's mathematically proven to be several times better than Xenoblade, SMG, and even the all-mighty Wii Fit.

i agree with you. and your logic is flawless.

They maintain it because Nintendo doesn't authorise huge price cuts on their software, regardless of whether or not its selling. Thats just Nintendo's pricing approach. Skyward Sword is still near full price at play.com, but we all know that game isn't selling anymore. Comparatively the Last of Us is down to £25 but its obviously the better seller and higher rated game.

Whereas other companies lower sales to generate impulse purchases and incourage late adopters, Nintendo simply doesn't care. Nintendo also benefits from having very little competition on their platform compared to the stellar 3rd games found on other successful platforms.

But I agree that of all the 3 Nintendo's titles are most consistent across the board, unfortunately they lack diversity.  

Pardon, I thought you said "makes" and not "made".  Though, for reference, when was the last time that Nintendo had the best third-party support?

Yes.
Yes they do.

@Bold

During this Gen, I diffenitely agree with this.

During the 6th Gen I felt more like:

3rd party (from PS2 to GameCube) > Nintendo > Microsoft & Sony

During the 7th Gen I felt like:

Handheld > Home Console

I feel that the 3DS is the best of this Gen, but I like Japanese games much more then Western games, and always have.

I wasn't implying that Sony or MS develop the best in any genre, that would be as subjective as the OP.  But there are tons of developers out there who do just about every one of those genres better than Nintendo, but to be honest most of those genres N doesn't even touch, so unless you live on a diet of kart racers, party games and platformers, I don't know how you could look at N as the best, consistant in quality for the most part but not the best. 

As far as Xenoblade Chronicles, weren't they developed by Monolift Soft, not Nintendo.  I think the OP was stating N makes the best games but this isn't one they made.  They published it but that doesn't mean they had any artistic input, I could be wrong on this particular example, but N has other studios produce games based on their franchises, but while they may be their characters the game is not made by Nintendo, so I wouldn't count it as anything other than a N exclusive.  The credit goes to the developer for making the game.  Same can be said for the DKC brand, with either Retro or Rare making them.  

Also isn't XC part of the Xenosaga series, maybe a spinoff but it's not an exclusive N franchise, at least it wasn't until recently.  

Finally there are many geners I listed and even more if you want to break them down further or include some others I didn't.  And for the most part N doesn't touch most of them, so I fail to see how Nintendo is the best.  They stick with what they know but they haven't branched out in genres much and that limits their appeal to fans that aren't into platformers or kart racers.  

I guess it's how you want to define it, just because Sony or N or MS owns a subsidiary or has a devleoper make exclusives for their systems, doesn't make it their game, so I wouldn't count the DKC brand anymore as made by Nintendo as I would the Last of Us or Jak and Daxter which were made by Naught Dog, though I could be wrong since I don't pay a lot of attention to that side of gaming and if someone smarter than I can correct me if I'm wrong, I'd be happy to be corrected.  

I agree, exactly like Psy who creates  better songs than everyone else.

Doesn't Psy singles, sell way more then Bieber?

Fixed ( and better analogy since Psy is an asian man :)