The only playstations that I've touched were PS1 and PS2, so I can't really speak about the others. I'm sure both have their benefits, but I've been playing xbox since I was a child so of course you know which one I prefer.
I prefer PS4 for the exclusives. I used to really like Halo, but ever since 343 took over it's lost my interest. I never was a Gears fan. I really love Uncharted, and I'm looking forward to No Man's Sky in a few weeks.
I also like PS4's UI more. I can't tell you how many times Xbox has annoyed me with its clunky and cluttered UI.
In terms of controllers, I like both. Both of them feel really nice. I don't really have a preference.
I still like Xbox. I just have some issues with it, and I personally like PS4 more.
Both are fine. Enough of this stupid console war bullsh*t. Let people play what they want to play on what they want to play on and stop bashing each other for it