More than anything, the A9 accepts the state of mobile applications and that's why it excels in my opinion. Is it an excellent chip? Yes, yes it is. But in that utopia where all applications were properly threaded and optimized for all the quad- and higher core count CPUs available, the A9 would probably be getting its ass handed to it. But alas, things are as they are and apps are lightly threaded and more cores are usually a waste in mobile. For all its excellent attributes, I think its greatest strength is that it's not forward looking. And financially speaking, that's not a bad thing. It works now, and it works exceptionally well. Bulldozer was forward looking, and look how that turned out.
Just something I wanted to throw out there. Sorry for the off topic. Also, give my condolences to mr. Moore about his law. It will be sorely missed.