So, there's your first marketing gem. The D800 video is what?
has video too. uncompressed HDMI too. I hope the 5DIII has that as well as a headphone monitor both of which are glaring omissions on the 1DX. fps wise, unless canon can push 1080p60, it will be unlikely to have anything over the D800 then.
Nikon's AF system is what? Assuming the f8 feature will be sorted, the Nikon's will be trailing Canon in AF for the first time in a fair while - and you won't need a battery grip to get the extra FPS.
doubtful. same AF as the 1DX = no f/8. I wouldn't say nikon trails at all. A10 points difference isn't going to matter. plus we know how capable the AF in the nikons is and has proven itself time to time. canon still needs to prove itself so how can you tell?. At best they will be equal if canon puts it out of park. The nikon also focus down to -2EV which is an improvement over their prior gen and will really help it in low light. So lets give canon credit, but let's not deceive ourselves. They are not really surpassing nikon in any meaningful way.
How is Nikon's comparing to that? Oh it's not - it just bolts on the bottom and gives an extra few fps without and moulding for comfort? Damn, i thought you almost had me there!
I don't know if that's a killer feature the OP is talking about. "The battery grip feels gripper" doesn't sound like a bullet point in marketing. But ok. I'll take your word for it. I've never held a D800 with a grip.
22mp FF - yeah i know, that's a bitch isn't it? Not as good as 36mp, i'll give you that. But hang on - at what cost? Maybe Canon have a more rounded offer in the wing?
Sepeculation about tomorrow doesn't sell cameras today. Nikon will have something else, Sony will have something else, Canon will have something else. who cares if you're buying today?
Let me tell you the real differentiator for canon since all you said is well, trivial. High ISO will be better on the canon because of the low MP count and FPS will be better. However one has to wonder the wisdom of that because it looks the 5DIII competes better with the 1DX than the D800 which from the start decided not to be an action/sports body. Canon however can exploit that gap in nikon's lineup....assuming nikon doesn't fill it in with a full frame D400/D800s. THAT'S the "killer" feature for canon. In other words, nikon swapped places with canon in this segment. Canon now has the speed demon. Nikon has the studio/landscape body. Both should gain market although I think the fact canon isn't the only video capable body this time (remember D700 had no video at all) will certainly level the field.