PS4 is king here. Every gamer I know has one, except a guy who's still with the PS3 and will upgrade later. Oh and an oddball that sticks with Vita only (hey i like the Vita but that's still a weird choice right?)
3DS does pretty well too, specially during the holidays. Wouldn't be surprised if it's the most popular platform after PS4 (and PS3?). Though I don't actually know anybody with one.. must be a demographic(s) that I don't mingle with.
Wii U and XB1 do very poorly. I know nobody with a Wii U and only one person with a XB1 (I don't have either of them) and even that guy also owns a PS4.
Unsure about Vita. Hard to interpret what goes on. Seems to do well with two crowds, some hardcore fans and some family/kids that want to play Sony IPs instead of Nintendo's. It probably does better than the X1, maybe even the Wii U, but certainly leagues below the 3DS. Regardless, anedoctal and I have no sales numbers to be certain.
