You do know how physically big the Note 2 is, right?
Yes, personally its size is grossly exaggerated in my opinion. I think it's perfectly fine to hold in the hand, and fits in the pocket just fine... but that wasn't the point.
The point is that it is both a high end phone, and has good battery life. It can be done. And for that matter, although clearly not as powerful a phone, Motorola has shown it can be done as well with the Razr Maxx (or even just the regular model) There's nothing stopping HTC, or Samsung, or any other developer from putting a hefty battery in their devices, regardless of what else may be under the hood. Sure, it might require reworking their phone designs, but maybe that's becoming a necessity. I think this craze to make each phone slimmer than the next is bizarre. We're paying top dollar for the devices... I shouldn't have to worry about having 10 chargers secreted away in every corner of my life just in case.
It's possible to have the best of both worlds, without having to sacrifice either battery life or processor for the other.