I would have to disagree. I have the ipad mini and an ipad4, and, while the ipad4 retina is a hell of a beautiful slab (and fast) it's a bit of a beast compared to the ipad mini. The mini finds itself coming along with me (fits in my jacket poket) most of the time, and the ipad4 sits idle 90% of the time.
When I do use the ipad4, it's great (much better than my ipad3 was), but the battery is totally drained after 4-5 hrs of heavy use (eg a game or even Skype). Then I have to find the big charger and wait at least 7-8hrs until its fully charged again.
On the other hand, the mini seems to get me through a full day without a problem, and if I forget to charge it overnight I still have enough charge to get me by, or I can find a PC USB port to charge it at some point in the day, and she's topped up in an hour or so.
I guess it depends on how you measure "superior", but to me, the mini is superior to my ipad4 in a number of ways.
Cheers,
Iamthinking
Ps I agree that one shouldn't need to provide links to prove that higher res/more CPU/GPu = more power requirements. It's pretty much a no-brainer at this point. You've got to be a bit of a newb to not know that!