Pufferfish,
I completely agree with what Larry, Bill and Ken are saying regarding abilities, who could argue against it?
I will tell you what I did and then everyone can decide if I am on crack, off my nut or whatever
When I started looking into cameras I did not want to exceed a budget of $2500. However, I will be diving and taking pictures almost every day so quality counts a little more than just some occasional vacation trip.
After a lot of research I had pretty firmly settled on a high end P&S like the Canon G10/G11. I then searched for as many example images as I could find. After looking at hundreds of images I have switched to a Nikon D90.
I honestly didn't like the quality of most of the G10 photos. Yes there were still plenty of excellent images, but from looking at the rest of the individual's gallery, website, whatever, most of those excellent images were associated with pretty competent photographers.
However, with the D90, while there were plenty of "bad" pictures if you will, the overall image quality for what I am looking for (pleasing to my eye) was much greater. Most importantly, I found a fairly decent percentage of "acceptable" photos that were obviously not taken by someone with great skill considering a lot of their other photos.
This tells me that with all else being equal (regarding my skills), for what I am looking for, I will get more shots
I am happy with from the D90 then I will from the G10.
Does that mean anyone else will like the photos? No. Does it mean that the photos will have great composition, or that I will have my depth or lighting set correctly? No, it just means I think I will get more photos I like from the D90.
Does it mean that if I had a G10 I couldn't learn to take as good a shot as I would with a D90? No, but I'm willing to bet the difference in the cost between the two systems that it will be easier for me to get what I want with the D90.
It's really very simple: if I look at 500 Canon G10 photos and I only like 50 images and another 50 are "acceptable". Then I look at 500 Nikon D90 photos and I like at least 150 and another 50-100 are at least "acceptable", chances are I will like my results from the D90 better than I will the G10.
Could I do this same comparison with two relatively similar DSLR cameras? Of course not.
If you looked at the exact same photos I did would you come to the same conclusion? Maybe, maybe not. It doesn't matter. I wasn't looking for perfection, I was looking for what I liked.
Cheers