Photorebel wrote in post #2290966
I had both. I sold my 5D. It is a great camera, to be sure, and IQ is oustanding. I also believe it edges out the IIn in IQ at 1600 & 3200 ISO.
LOL - I had both also, and sold the 1D II.
That said, it really depends on what your primary subject matter is. A lot of sports, can't beat the IIn, and the IIn can be used for portraiture. You can use the 5D for sports, such as softball/baseball ..football..when you can anticipate a play. Mabye the 3 FPS wouldn't be a problem for you. Motorsports? I don't know...not having experience, it would seem like 3FPS might not be enough.
Most all of my shooting is single shot, so for me, the 8.5 fps wasn't a major issue. I rarely shot "rock-n-roll" when I had the 1D2.
Bottom line, I have the IIn, and love it. The IQ, the feel of the body, the control layout..everything. I have the 30D for backup, and frankly don't even miss the 5D.
That's just my preference.
Indeed, and mine is the 5D. Wish I could have kept both! Really, as you said, it depends on the intended use.
What I like on the 5D is the low-light performance and high-ISO noise rendition. It focuses faster in very low light. It benefits the wide-angle shooter. It's smaller & lighter. AF is very good, and I've not had any trouble tracking movement with it (granted, I've not tracked anything extremely fast and close, where I would expect the 1D2 to excel). It also produces the best out-of-camera shots I've gotten from any DSLR including the 10D, 30D, XT, and 1D2 (I suspect that is partly due to the latest algorithyms that Canon uses for sharpness, color, contrast, tint, WB, and all that).
What I liked on the 1D2 was the incredible build, the ability to AF with f/8 lenses (without cheating), and the great flexibility to the metering and AF systems. It also produced great, clean images, though they required more PP than those from the 5D (perhaps the "N" with picture styles might be better in this respect). The 8.5 FPS wasn't useful to me, but I can certainly see its usefulness in action situations. Perhaps if I had better access to events, I'd have learned the value of the frame rate.
Fact is, both are great cameras with much more in common than different. Yes, there's the frame rate, weather sealing, and build differences, but both can create wonderful images in the right hands. Each has a feature set that matches different situations, but each can work well in most situations.