"winning" is hard to define here, because the work became so diffuse (meaning, several sites grabbed the Bonnell/Silverthorn core and started whacking at it), but on paper (foils?) it was the Austin fellows who got the gold star. Some readers who were there may disagree.

I used to work in Austin. I always thought Austin was the Atom HQ of sorts because that was where ARM was also located. And at the time it seemed like Austin was the mobile epicenter of the chip world. But yeah, at Intel there has always been a rivalry of which location owned what projects. Thank god I'm not there anymore.

Wherever the teams at AMD, NVIDIA, Appme and TMSC work out of.