I have all of them.
I main use the PC, Wii U, PS3, and PS4 as of late.
The 360s are waiting for some hot exclusive, and the Xbone is in the same dept. The PS4 is also teetering on the brink of being unplayed, but since the PS4is more powerful I did pick up a few multiplatform games for it like Battlefield 4 to play with some console buddies.
Mainly though the majority of my playtime has been PC, PS3, and Wii U.
PS+ has turned out to be a godsend for an older gamer such as myself. I got some neat games on PS4 due to it, but I got PS+ for the PS3. Added bonus it worked on PS4 and Vita.