IMO...More intuitive interface, faster better looking games, sleeker hardware, much better controller, better exclusives, easy to upgrade the HD, integrated power supply.
This, agreed totally. the ps4 is a terrific console and very sleek looking and is very quick with install times. I've seen first hand the pain of installing and updating x1 games, it takes forever to install a game, then it needs updates after install ps4 plonk the disc in, most games within a minute you're playing and it downloads updates whilst you play.. it's so sleek it's untrue. the ps3 was so painful to install and update games, Sony got their install and patching routine on the ps4 so easy, quick and just right ..
the ds4 is a joy to use, it's better then a 360 pad imo.
the ps4 is now a very good media device as well, BBC, 5 on demand, sky tv, Netflix, YouTube, the mp3 playback is a pain, as you need to use usb devices, and dnla is still missing sadly. but what is there is pretty darn good.
but ps4 games are wicked.. don't let the poor early reviews of drive club put you off the titled, it's now mostly fixed from it's messy release, and its being updated quite frequently...
also, you can use any audio headset with the ds4 it's just so easy to plug a audio splitter into the ds4 pad and use any headset with a Mic for lonlknee gaming..
also, they say psn is poor, it's really not.. Sony have had a rough time with psn , but its not nearly down as much as folks tell you. it's actually been rather solid for big launches.. sadly massaging on ps4 is slower then I'd like, but it is improving..
a ps4 is a very good games machine, I've been really impressed with mine, after the awful time I had with a ps3 I was a little worried the ps4 would be the same, but Sony have fixed so many flaws of the ps3 with the ps4, it's only mp3 and dnla support I feel they went backwards with.