Realistically, what is the biggest franchise that Microsoft can buy out that would give them first place in console sales?

[DJEVOLVE]

Captain_Tom said:

DJEVOLVE said:

Halo says hi...

However I think it's going to a number of games. COD would have a massive impact, along with games like GTA or straight just buying out EA.

Says hi to 24 million sales vs the PS2's 160 million lol!!!  Learn to read I said #1.  

With out Halo, there would be no xbox at all, so essentially that one game saved a whole system.