No it wasn't. A simple google will show that.
Fact of the matter is MS has never won a gen in sales, not the OG Xbox, not the 360, and not this one. But don't stop believing....
and for the record, the majority of 360 heads were PS2 owners aka still the GOAT system.
I put 360 ahead of ps3 just because of the online aspect and Microsoft pushing the limit which created what we have now.
All I know is that I am buying both on launch day