I think the PS4 will take an early lead, overtaking the Wii U around Q2, and ending the year ahead. Xbox will be behind, but not by much. But that's just for 2014. In the long run, it's hard to say, but I think both PS4 and Xbox were overhyped, and won't be as big as everyone says. When the dust settles and gen 9 starts, things are going to be closer than we think.