Whats the biggest lead the 360 has had over the PS3?

[numonex]

Undying said:
How many 360 were sold before the PS3 launched?

XBox 360 install base was around 5.3 million when the PS3 was launched.

The XBox 360's biggest gap over PS3 is now at 7.7 million and rising. The previous biggest gap between 360 and PS3 was back in November 2007 when it was around 7.5 million.