I honestly doubt that the press for the most part will go hard on MS, they'll probably give them a few passes. For example, for Forza 5 they'll say something along the lines off "While it may lack content, this is expected from a launch title and so we can't dock points!"
For DR3 they'll probably say "Though the graphics are lacking and framerate dips freqently, The gamplay far outweighs those negatives!"
For KI, I have no idea what to make of the game, but they'll probably praise MS for having the courage to bring back an old franchise
For Ryse they'll just talk about how the graphics look amazing and that'll be that.
The XB1 Hardware itself will get higher scores overall than the PS4, I"m almost certain of that.
I'd gladly eat crow though, but from the Press's behavior in the last few months, it really seems they're going to go very easy on MS, compared to Sony.