Something that not very many people are talking about are the PSN/XBLA titles that are available on their respective systems. When it comes to owning a PS3 vs a 360 it seems a little silly to discount the downloadable titles that are available.
I think that the PS3 may have a bit of an advantage in this area, mostly due to the inclusion of a HDD on every console which allows them to really put a lot of focus into developing games for this purpose. The unfortunate thing is that it's really difficult to tell how well a DL title is doing. I don't know of any numbers being tossed around about the sell-through rate of games like PixelJunk Monsters, flOw, Super Stardust, etc., but, I think it might be interesting to discuss the possibility that these titles could drive sales of a console. Everyone may not agree but looking at just the PSN lineup of available and soon to be available games is pretty exciting/interesting.
The point I'm making is that when it comes to talking about exclusives I think it's relevant to include the PSN/XBLA titles as well for comparison. It's easy to write off the PS3 as having no games worth looking at when you look at their AAA exclusives over the past 2 years, but that becomes a little more difficult when you include some of the high quality downloadable games that have come out over the same period. There's definitely something there that might make the average 360 owner 'feel cheated'. :)
