It's an interesting question.
Grand Theft Auto IV sold a whopping 22 million copies and according to analyst projections , the recently revealed GTAV has a chance to sell 24 or 25 million. Now, those same analysts predicted similar lifetime numbers for Call of Duty: Modern Warfare 3 , which launches next week.
Some say MW3 could sell nearly 30 million, however. And with the generation perhaps winding to a close over the next couple of years, we don't see anything else that could challenge either title for the overall sales crown. Maybe competition won't matter, either; CoD can keep launching amidst the insane fall lineup every year, and Activision never has to worry about sales. Same goes for GTA; nothing can really have a significantly negative impact on the game's launch.
Review scores may have some effect, as analyst Michael Pachter predicted that GTAV could sell 20-25 million in its first year provided it nets "mid-90s reviews." Does GTA rely a little more on critical reception than CoD? There are plenty of questions to ask but in the end, do you think GTAV has a chance to top MW3 in the overall sales department?
Related Game(s): Grand Theft Auto V