Sure Intel might have manufacturing process superiority at first, but the reality is that AMD's chips will be out at least half a year before Intel's new Atom and, after another 6 months (summer 2014), TSMC will likely start churning out 20nm wafers and there goes Intel's advantage.
After all, Atom needs to triple its graphics performance TODAY to be able to face AMD's E2-2000.
When Quad Jaquar GCN APUs will be out, even Intel's Bay Trail will be far behind.
On the other hand, the new Atoms will be OOO and, on the x86 computing side, will probably be able to face Jaguar.
As it stands right now, Atom is slower than Brazos and this trend might continue with future generations as Intel only claims a doubling of performance while I expect AMD to do more.
If Intel will manage to make Bay Trail slightly faster than Kabini, we will have to choose between a 10% faster CPU with a much slower iGPU and a 10% slower CPU with a 50% or even 70% faster iGPU.
That will be an easy decision to make and it will always favor AMD.
If Intel's Atom x86 part will be more than 25% faster than AMD's x86 APU units, I would still favor AMD's Kabini for the better iGPU, but many will probably lean towards a Bay Trail solution.