Which one would you go for? I know it's quite hard to compare, Canoners will say 5D and Nikonians will say D700. Imagine if you're neither, and it's your first step to full frame, which would you go for?
Well, I'm a Nikonian myself, but the thing is... I've heard many people switch to Canon for the 5D Mark II, haven't heard any people switching from Canon to the D700.