Probably none of this is helping you resolve your dilemma, however, I've always thought that it doesn't matter how good the camera is, it will all come down to you as the photographer.
Having studied photography some years ago, I learned of the works of Andre Kertesz, a Hungarian born photographer (born 1894) who started with a box brownie of sorts and produced the most amazing b&w photographs. Some of his photographs bring tears to my eyes.
I've seen plenty of appalling photographs by people who had fantastic cameras, but didn't bother to compose the shot or take care in the exposure (perhaps they didn't bother to read the manual either).
I hope you eventually make a decision, and get many hours of enjoyment out of your camera. It can be a terrific hobby.
