I vote ps4, because I play on ps4 myself.
Be warned though, ps4 has the most childish and toxic community of the 3. It's not all bad..I've met some truly wonderful and generous people, but still.
I'd say 90% of "exposed" videos come from ps4 (in PvP), as well as some of the most demanding and toxic trial/vet dungeon groups I've ever run with. (in PvE)
And while I wouldn't play any where else, mostly because of time invested and all my stuff, I'd feel like I wasn't giving a honest and fair warning here. You'll find good things on ps4, but be prepared for the not so great as well. Yes, it's everywhere, but ps4 has more than its fair share of bad apples.