Man! Been a while since I've been on these forums. I recently was able to try out both the Xbox ONE and the Playstation 4 in my household, so I figure I'll give my 2 cents on the matter. I really enjoyed both consoles, but each one had their own little thing I did or didn't like. I guess I'll break them down now.
I enjoyed the Xbox ONE's controller and honestly really enjoyed how it uses that snap feature to run apps side by side. So while I'm gaming, I can still browse the entire thing of the ONE and set up parties, or skype, or other things like that. However, that's also something I didn't like. The ONE feels far to social for my tastes, with the media sharing, the netflix, facebook, so on and all the other apps. I'm not into that, so it was a bit of a nuisance. When I get a console, it's to game and game alone, not do things my computer already takes care of. As for the games, I didn't really bother to much with this since almost ALL of them are on their competitor console as well. Though I'll admit Risen was a pretty game, albeit a bit short.
As for the Playstation 4, I loved how it's entirely focused around gaming. Sure it has twitch and sharing as well, but it's more focused on actual streaming and recording, not uploading screenshots to facebook for all my codbros to see. The PlayStation 4 also seemed to run quite faster then the ONE and was incredibly smaller/sleeker. Though the controller felt a bit wonky in my hands and they tried emulating the 360 controller more this time around, switching the game profiles from L1/R1 to L2/R2 for shooting and aiming on most games.
A big deciding factor though was really the fact that the Xbox ONE has the skype codec for it's party chat now which is HEAPS better then what's on the PS4. The mic quality is stupid good and really makes a difference.