I don't think any of the current gen consoles will move as much and certainly not more software than the PS2, no.
The install base is one thing to consider, but there's also the enormous lifespan of the thing, its still going strong 8 years into its cycle!
And the tremendous support is another, there are still high quality, big budget titles being developed for the PS2, and I don't think we'll see this ever again simply because I don't believe there will be such a dominating force on the market again. (Yes to all Wii fans, its selling fast as fuck but is nowhere near as dominating as the PS2 is/was, so don't try to tell me that it is just because you want it to).







