GTA: San Andreas. Best Game of All Time?

There has been speculation over this. Not only is it the biggest selling game to date, but it's the most reviewed game ever! Even though all Call Of Duty games are said to be "bestsellers" - they're only top of the charts at the moment. According to Wikipedia this game is "The largest selling game on all three platforms" - of which they mean PS2, Xbox and PC. On IGN, it states "GTA: San Andreas is the largest selling game of all time." 
Grand Theft Auto itself has sold more games in their collection then all of Call of Duty's and any other gaming franchise (excluding Sims who's PC collection is the largest in the world).
Grand Theft Auto: San Andreas consists of 3 gangs; Grove Street Greens; The Ballas; The Vigo's - You play Carl Johnson, creator and co-leader (with brother Sweet) of Grove Street. At the start, you're coming back from an eventful five years "on the East Coast" - you have come to see your mothers funeral, after a call from your brother, Sweet.
As the game passes, you become the center of the gang war between the three families. While The Ballas and Vigo's keep their distance from each other - Grove Street don't. Soon after taking over The Ballas hold on Grove Street, you expand. Only to find out your two closest "homies" have set you up. Both Big Smoke and Ryder are working for the Ballas. They also reveal a Green Sabre which was said to have ran your mother over.

You are took to a deserted part of the state, after Sweet is shot and taken to a prison hospital. You begin again, moving away from the Grove. Killing the men that betrayed you and your family.
Soon, you find yourself in Venturas; the Vegas state. You begin to grow your "crew" - with Wu Zi Mu (Woozie), Cesar, your sister Kendall, Zero, The Truth, Jethro, Dwayne, Madd Dogg and others. You have gained fortunes and have a cut in a large amount of business places.
Toreno, your government ally, lets you have Sweet back after months apart. You meet him at the prison but he seems down, while you (Carl) have been jetting off around the state, the Grove has fallen apart. He goes home, only to find the Ballas have taken over. You start to work you way back up on the Grove. Till you have enough territory to scare the Vigo's into talking about the Ballas.
They give Sweet the position of Big Smoke the last traitor to live. CJ (Carl) fights his way up four floors, and finally finds and kills Big Smoke. Then Tenpenny, a Cop who works closely with gangsters, finds you. He is the reason half-the-city is going mad, due to his unpopularity and not getting a sentence in court. He tells Carl to pack his bag full of money. He then runs for it, while Carl chases 4 floors of more guards.
After an eventful chase against Tenpenny on a fire-truck, he finally falls. The Grove is reunited. The story ends. You can still play the game, but no more missions are issued.

Just reading that story makes it the best game, but really, it's all the little things that make this game great. From the mini-missions such as taxi-drivers; ambulance-drivers; vigilance missions; truck/train drivers; boat/plane/car classes; buying houses/property; keeping your girlfriends happy; shooting up at your local gunshop; robbery; keeping Los Santos belonging to the Grove and eliminating the Ballas and Vigo's. It all keeps the game interesting and great!

I love GTA: San Andreas, I'd say without a doubt, the best game of all time - what do you think?