AAA is when a fan boy of another system sits down, plays the game and is forced to admit it's damn good;)

To me, they're games so good I can play them over and over again without getting tired of them.

Games that I enjoy are AAA games in my book.

Kingdom Hearts IS the definition of AAA. And that's that. You can't argue it. BEST. GAME. EVER.

^ I can argue it.

Never played either one. So they cant be that good that I say its best game without playing.

Quality is relative. You cannot judge something fairly by a relative value. Quantity is absolute. You can fairly judge something by an absolute value. Ergo I cannot in good faith judge a game by quality, as I know that my definition of the term does not necessarily match another person's definition of it.

Usually I define "AAA" as a major Nintendo release. Like the new Mario or Zelda game... Not so much Diddy Kong Racing and other stuff like that.

AAA = 90%+ in GameRankings and Metacritic.

+90%, with a few games that didn't reach 90% (but were near 90%), but because of players' opinions makes it AAA. Sins of a Solar Empire and FFVII were near 90% yet didn't reach it, but since they were highly acclaimed by players both have AAA status.

There are also games that reached 90%, but because the players' opinion wasn't so good, it removes the AAA status. Oblivion and Halo 3 both reached 90%, but both were a disappointment to many players, so they aren't AAA.

That is my definition. Sales and hype are pointless, Quality is the only thing that matters.

Perhaps we should start by eliminating what does not describe a AAA game?

Percentage points are out.
Why?
Ratchet and Clank is considered a AAA title, yet only Going Commando and Up Your Arsenal rank 90%+
Also, re-releases tend to rank lower than previous titles. Under the 90%+ Dead or alive 2 and Ninja Gaiden would be ranked AAA but Dead or Alive Ultimate and Ninja Gaiden Sigma would not be. The re-releases are the same game with better graphics and more content, surely they would be more AAA than their predecessors.

Sales are out.
Why?
Crap games get huge sales too. Wii Play, 50 Cent, Mario and Sonic. I could go on and on. Also, sales tends to favor multiplatform releases, since they're more likely to sell more than exclusive games. Do you think Madden (pick one) is better than Bioshock? Under the sales rule it would be.

That leaves us with few options. I'd guess that Fun would be what determined AAA status or not. Sure, fun games almost always score high, but they're not guaranteed to hit the 90%+. Resistance is considered AAA, Crisis Core looks to be following suit as well. Sales do not make a game AAA. Ico and Shadow of the Colossus, are considered by the gaming media to be AAA and yet they haven't broken a million in sales. ( Shadow is at 730K, Ico less than that)