I am heavily biased against Kinect, since I am not interested in motion capture and whatnot, so it would be next to worthless to me. Having it bundled in with no choice, and my 100 bucks are wasted.
That, and: http://www.ign.com/articles/2013/05/21/xbox-one-will-not-function-without-kinect-attached
Based on each unit's architecture, the PS4 does have the edge in raw power, which is what my comment was based on.
The good news is, like TMoney has been saying, both consoles are x86, so it is a huge positive for computer gamers (hopefully) in that there will be a huge drop in un-optimized console porting garbage.