Well, I wish that had been around when I was buying my DSLR last year. It's always really difficult to compare model to model.
During my search, I had to pick a price range, find a few models in that range, find reviews and go back and forth. All in all, I spent about a month making the decision. I've pretty much been a Nikon or Canon shooter my whole life, so that month was just spent choosing between the two brands. It's not an easy choice unless you can get your hands on the actual cameras. But, that's not gonna happen.
I picked (drum roll, please...) a Nikon D5100. Looking at the comparisons on camerarocket, I most likely would have made the same choice.