So, let's see how this breaks down:
AT&T: 3.6 million over a 13-week period.
Verizon: 2.2 million over a roughly 7-week period.
That works out to roughly:
AT&T: 277,000 iPhones per week.
Verizon: 315,000 iPhones per week.
Yeah, I'd say Verizon did quite well despite the naysayers who think AT&T was selling more of them (when it took them almost twice as long to get those numbers).
Hard to say, but I'd think they're about equal.
The AT&T iPhone had been about 7 months old for the recent quarter, so I'd expect the numbers to be lower than they had been around the launch. Verizon's iPhone was brand new, so there was that launch-spike.
On the other hand, there's likely a lot of Verizon users waiting for the iPhone5 since the Verizon iPhone, while brand new, was essentially a 8 month old phone.