Jim, Perrone's comments regarding your poll are on the mark. If you are trying to gather information to make an informed purchasing decision, you need to ask specific questions regarding the D600 vs. D800, pros/cons, etc. User experience input is important, but you will ultimately have to live with your decision. Make a small investment and rent the cameras for a weekend and do a side by side comparison yourself.
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I would have to agree with Perrone and JL. I've used a D800 and I now own a D600. They're different cameras for different folks. Your profile indicates that you own a D7000 and if that's current and you intend to keep it, the D600 should be a natural for you since the controls are similar. But, that's just one of many considerations.
Hamjam, I agree that you need more or different options on the poll.
I would have chosen D800e as I already have the D800. Two main reasons I bought the D600 were price and availability. I think the D600 is a compromise between the D7000 and D800 with the D800 worth the extra money. I also think it would be better for what you want to shoot. There are now some used ones available at a reduced price. However, if you buy a new D600 or D800 this month, you can get a $150 instant rebate on a 28-300.
hamjam When you get to the camera store, spend lots of time with each camera. Hands On is extremely important and the main reason I prefer the D800. If you do not shoot for long periods of time it will mean less to you.
When I first got my D600, I thought being smaller and lighter would be great. But the D800 is not that much heavier and after even 6 hours of shooting I am less fatigued because the camera and controls fit my hand much better.