D800 - and I really struggled with this one. But here's the logic I used to make my decision, and it came down to risk management.
Suppose through some magical whatever, that every picture I take from now on could be identically captured on both models simultaneously. So now I will always have two images to compare for every shot I take. Here are some questions to think about.
Is there any chance that the D800E image has a slightly better resolution than the standard? Yes, of course. That's the whole point of the E model.
What is the chance that without having a side by side comparison to make, I would ever be dissatisfied with the resolution produced the standard D800? Zero - not a chance. The resolution from this camera is incredible. The only way to ever question anything negative about its resolution, would be from a side by side comparision with an D800E - which, in reality, is never going to happen, so I will never know the difference.
Finally, is there a chance that without an AA filter, I could get images with Moire problems from the D800E? Yes. A very real chance, and they will be readily apparent without needing a side by side comparison to anythinig. I do not want to have to deal with this risk. I don't even want to have to think about it when I shooting, much less try to clean them up in Photoshop.
So, my conclusion was there is no risk that I will ever be unhappy with the resolution from any image from the D800. What the D800E might have produced will be irrelavent. But there is indeed risk that images from the D800E will have problems with Moire, and I would be unhappy with that. Given my finances, this is an extemely expensive camera, and I want nothing but good feelings when I get it!