1 AMD has an architecture better suited for DX12
Says who? What is your evidence for this? I've already told you that Maxwell is more fully compliant with the DX12 feature set. Were you even aware of this? AMD has some advantages in the DX12 space too (Tier 3 resource binding for example) but to claim one is more suited to DX12 than the other at this stage is nonsensical, there is virtually no material with which to properly compare the two.
Further, you are making this same proclamation not only for Maxwell but for the as yet unreleased Pascal architecture for which we have little to no information. It's laughable.
2 AMD cards with less theoretical FLOPS perform better than NVIDIA cards in DX12
This is simply flat out wrong. Putting aside there are no proper DX12 games to test against, even if we take the most extreme AMD favouring example of Hitman (which is equally favourable to AMD in DX11 and DX12), then we still see Maxwell generally outperforming AMD architectures on a flop for flop basis. Maxwell is simply much more efficient than AMD per flop. Not that this means anything in isolation but you raised it so I'm correcting it.
Example: the 980Ti and the 290x have the same 5.6TF yet even in this game the 980Ti is faster. In every other game, it obliterates the 290x. The same holds true right down the product line.
http://gamegpu.com/action-/-fps-/-tps/hitman-v-directx-12-test-gpu.html
4 current and future console videogame development has more in common with DX12 than the old NVIDIA optimised engines
If by "old nvidia optimised engines" you mean DX11 based engines then hopefully you're right. Although most current development probably has more in common with DX11 than DX12, even on consoles.
5 "but NVIDIA can't write drivers!! Once they learn how to, NVIDIA will beat AMD at DX12"
What nonsense drivel is this? It's widely accepted that Nvidia's driver support is better than AMD's, but both IHV's are very new to the game of DX12 optimisation and it always takes time for them to hit a good level of driver optimisation. In this case AMD have been given a good head start thanks to their work on Mantle.
So you agree with me on this now? If that's true then on what basis do you claim AMD is better suited to it if there is currently no way to properly test this?
7 PS4.5 will have +4 TFLOP of AMD DX12 architecture
Yup.
8 PC fans want to believe +4 TFLOP AMD will not match a 970 card at DX12
There is no "want to believe" about it. You have already been given evidence and have none to offer in response. The GTX970 is about 50% faster on average at 1080p than the latest AMD architecture in the form of the 4 TF 380x in a cross section of modern PS4 era games:
http://www.techpowerup.com/reviews/Gigabyte/GTX_980_Ti_XtremeGaming/23.html
9 this is no console war, it's ONLY about AMD having DX12 level architecture
Just like Nvidia.