Umm, Mario something or the other. Yeah! Nintendogs! Brain Age!
[not that I actually own any of those ganes..]
Actually, every DS game I own isn't "AAA" by the books but "AAA" in my heart, and that's what matters! What makes the DS so unique is that no matter what your mindset, whether it be casual, hardcore, whether you agree with most video game critics, or whether your tastes are the polar opposite of the mass majority, there's a game on DS that you NEED to play, whether it be something as mainstream as New Super Mario Brothers and Brain Age or something as obscure as Puzzle Quest and Cooking Mama.
I mean, in the end, what does "AAA" really mean? How do you define it? Is Brain Age truly AAA? Is Nintendogs? Truthfully, is New Super Mario Brothers AAA? They've all sold millions, they've all received high marks from the critics, but are they -really- AAA? Perhaps because they're on a handheld and the MSRP is low, but what makes them AAA? What makes them, so much better, than say, Tekken DR or LocoRoco or Lumines or Daxter?
In my opinion, Nintendo didn't make mind blowingly superior games, it's not like you play Nintendogs or Brain Age or even Mario, then pick up Tekken or Lumines and whatever and come out saying, "OH GOD, Lumines

ing sucked, I'm going to go play some more Nintendogs"
Somehow, Nintendo just managed to strike the same chord Sony struck with "Parappa the Rapper" and "Crash Bandicoot" many years ago. Is there anything on Wii truly that much better than 360 or PS3? No, not at all, but once again, it struck that chord..that magic spot that somehow makes something a success
Anyone would agree that Mandy Moore is a better vocalist than Britney Spears, and she's not ugly either, she's quite pretty, but Britney Spears became a billionaire and Mandy Moore fell of the charts. Is that Mandy Moore's fault? No, not at all, Britney struck that chord once again, Britney struck that chord and hit it not just one time but again again and again and again and that's how she ended up being number one at the time.