Im going to bring data to an opinion fight!!! 
Thanks goes to Zed a fellow New Zealander for preparing this data. We are so awesome, praise for we are few but we are all awesome ok?
As you can see from the above, the Xbox 360 has had a more steady level of sales over time and this is also reflected in worldwide charts whilst the PS3 has been more a slow starter. This means the Xbox 360 has an older console userbase on average, even more than when factoring in just the earlier launch. So the PS3/Xbox 360 closing in on relative retail sales is to be expected as new purchasers of consoles buy the most software on average and people who have had a console for a while don't.
However this isn't the only part of the game market that you can compare between the consoles, its just the visible difference. I have messaged certain people on Beyond3D who would know and from their responses I know that Xbox Live is a significantly more vibrant place in terms of sales when compared to PSN for the indie type games. This is also supported from statements made in a podcast by Alan Greenburg, hero of the battle of the HD (JK 
) that the Xbox 360 Live points cards were the highest selling accessory, topping even the Xbox Live subscription cards.
Retail games are competing for time/money with online purchasing and Xbox Live Arcade is quite strong and getting stronger every year even relative to the PS3 and in addition to this, Microsoft has 92 games on demand titles. You can say that Games on Demand only accounts for a few % of the retail sales, however the difference between the two consoles is in the order of a few %. What this means is that Vgchartz can only give the estimated retail positions of disc based product and not the absolute positions in terms of software for both consoles.
Tease.
