a new recruit for my clan has only just got his PS3, he also has a xbox. anyway he said that when playing multi platform games (Fifa his example) he cant help but compare the graphics.
i wont lie it does have its problems, some devs dont like to give us aftersale support, infinity ward with COD4 for example. the biggest exclusive of the year is still broken,
other pros- its alot quieter, if you download a film you can convert it to divx and put it on the ps3 hard drive and watch it, you can upgrade the hard drive. wireless controlers come as standard. built in wireless. ps upscaler (upscales dvds to look prettier) the ps3 is now only 249.99 fully online making it cheaper than a brand new xbox (199 for elite, then 40 a year for xbl) (spread that over the remaining 8 years of the ps3) and lastly you can download linux for the ps3 so in reality its a net browser, dvd/blu-ray player and games console in one
also on a side note if you do get a ps3 id go for the 80gb model (not the slim) because the slim is unly and just looks like a console