Gran Turismo vs Halo Which Is the bigger 1st party exclusive?

[NYCrysis]

JayWood2010 said:

NYCrysis said:

JayWood2010 said:
Both are huge. Sony has sold more Gran Turismo games than Halo in a complete lifetime.

However Microsoft has sold more Halo than Gran Turismo this generation. This generation Halo averaged 6m a year in 6 years. GT averaged 3m in 5 years.

I wouldn't say one or the other is bigger as both are huge. Lifetime I'd say GT but this generation goes to Halo.

That was the big issue guy claims EVER and so when you claim EVER, EVERYTHING since its inception comes into play not just cherry picked results ;)

Well under that logic you are saying things like Sonic are bigger than certain games even though he has kind of died off in todays time.  There is multiple ways of looking at it so you are not going to get a definitive answer.

Sure makes sense. I am not really defending gran turismo here as much as i'm going against HALO being the "Biggest 1st party exclusive EVER"