According to current vgcharts data - MGS4 PS3 gain reversed/Q3 victory 360.

[epinefridis]

As time passes by this gen and gamers become frustrated of what game to play FIRST of all these great games that are coming out, we understand why this unofficial (or official?) HD fight favors the gamers themselves first of all.
But yeah, the gap is staying the same or it is widening =)