PC, PS3 + PS4 now as of last month.
I used to be a PC elitist, but the ease of connectivity with other players via console cannot be surpassed for casual gaming.
Company of Heroes II, Destiny, BF3, Team Fortress 2, CIV V, Fallout 3/New Vegas, DAY Z, Total War series.
Love my gaming, but I generally can only find myself around 2 hours a week to play.