Apple just reported all-time record iPhone, iPad, and Mac sales. Surely the availability of the iPhone 4S on AT&T, Sprint, and Verizon had something to do with that. but of those three carriers, how does Verizon’s phone stack up? Well, if you’re looking for speed, AT&T’s model ($199.99-$849.99, 4 stars) is the best of the three, thanks …