Well going by the weekly charts here on VG, the PS4 is selling almost on par here in the us with XONE. But looking at Europe, the PS4 is trouncing the XONE. And remember the X360 never really sold well in Japan, so when Sony releases the PS4 there, look for another walloping of the XONE.
Sorry but, bar TitanFall being a smash hit moving Millions of consoles, the PS4 will dominate 2014.