I voted none of the above. I can't get excited about any of those things are they depend on which brand, mostly, you own.
I could live without proprietary physics effects and API's that may potentially favour certain brands and also any feature that is brand centric. When we use a dedicated card to play games from 3rd party developers and publishers we need to see an agreed standard adopted from all concerned.
Like other hardware groups, we could have a GPU developers agreement that had truly open standards that both parties could use.
From there all gpu manufacturers could focus on in house hardware technology such as power saving features, better board designs, better cooling solutions.
It's like if Ford made certain highways and only your Ford car could drive it properly. Highways can be driven by all and it's up to the manufacturer to develop solutions (4x4's for bad roads, etc).
I'd love to see a GPU consortium agree open standards and have development and coding of games work along side it. Let the GPU manufacturers focus on their solutions to the open platform so we could all have equal access to all roads.
Too cryptic? Also, is what AMD are doing with the Heterogenous stuff open like I am discussing?
EDIT: if i sound thick - i've not had my Ready Brek, yet.