Well that explains it. I'm not a fan of either motion control product and I stopped going to any Insomniac, GT, Forza, or DF thread so I guess I have a narrow viewpoint.
Well, I'd say it's less that you have a narrow viewpoint, and more that the areas in which people argue have gotten decidedly narrow.
It's just that I suspect that won't hold true when we hit E3 and are seeing the latest showpieces from Microsoft and Sony.
With the way the graphics pipeline is designed in DX11, your software technology can have incredibly dramatic effects on visual quality notably beyond what we've seen this generation since the graphics pipeline is no longer heavily fixed function.
If they do have very similar machines, the differences might still appear to be quite large if one of them has a superior engine, artists who understand how to work with the strength of their engine, and/or a game design that allows them to push more visually (such as being decidedly linear versus a large open world where you can go anywhere).
At that point, we might have people having a huge debate over hardware quality when the hardware is the same three parts with minor modifications, when the real answer is the people working with it. It also means that if one of them starts out strong, the other could actually seem to take a large leap ahead just on the strength of engine technology instead of having a set in stone hardware dominance, meaning that we see a lot more sudden perception shifts, which can cause sustained arguments.