I've seen no clear advantage between either console, playing both. It comes down to what exclusives you want.
at "any Xbox one owner will tell you graphics don't matter" like there's a significant difference, if noticeable at all.
I got the One and will probably get a PS4 at the end of the year. I don't get why the Sony enthusiasts get so pissy at people that chose the One like it was a personal choice against them though.
Ghosts, BF4, Assassins Creed, and now Tomb Raider already offer a larger difference than anything on ps3 and 360.
That matters to me. I went 360 for all my multiplats last gen for that reason. I didn't say "graphics and performance don't matter, I'm gonna buy the ps3 version."