I didn't hear the poster say he 'didn't like the D3', but just that he felt the 'Canon was still the leader'. A position I have to agree with.

Yes, the D3 is a very nice camera, but the Canon 1DsMkIII still has the edge. Better image quality, especially at lower ISO for demanding studio work. The D3 gains its speed advantage for sports photography by using the crop mode which brings the resolution down to 5.1MP, where the 1DsMkIII remains at 21mp. If you measure the amount of data processed, the Canon is faster than the D3. Nikon hasn't broken the 12mp range yet, while Canon is delivering the same or better image quality at twice the resolution. Nikon just recently joined the full frame arena, while Canon has been delivering them for quite some time. Canon gives you an impressive array of custom and persona functions that allow you to change so many ways in which the camera operates, which allows the photographer to make the camera match the way the photographer works and not require the camera adapt to the way the camera works. The 1DsMkIII has dual memory slots, and gives you a number of ways to configure how they are used. I use them on critical shoots to write the same image to each card as backup, thus if a card fails before I have a chance to write it to disk, I've got another copy.

In my opinion, Canon does have an edge over Nikon. However, they both play leapfrog on who is the best at any given time. To me, Canon as the lead right now, but I'm sure Nikon will take over in the future, then followed again by Canon, then Nikon. They have been doing that since I started shooting in High school in the 70's and 80's, and I don't expect them to stop now Either way, Nikon or Canon, they are head and shoulders above any other manufacturer out there save the medium format crowd. I'd be happy to own either.