That is interesting more for next generation. Looking at that list, most of the games from both I would never even try and I have played most by both that I would be interested in. I have basically come to the conclusion they are equal in terms of games I like that are not on the other system this gen.
That said, MS had a lot of business practices that soured me towards them as a company early on that still annoy me.The biggest one was how early on they constantly lied to consumers and said timed exclusives were true exclusives. This in no way helps a consumer of both products. They also got all the third parties which basically made the consoles very similar, and owning two had less worth.
Point is, I knew MS had a lot of unique games that is why I bought it. Though I still have found a lot more things I dislike about their services, polices and hardware especially early on that annoyed me more than the faults the PS3 had/has. The cock fighting will never end.