World of Warcraft by a long shot, In total I have hours 15725 across all my characters (Probably rage quitting 25% of that time). I've played this game for more than 10 years, and at the start I had no idea what I was doing (mostly cuz I was like 6 when I started playing the game). Now I'm a top ranked Monk healer, and in a heroic only guild that I've been in for 2 years.
I use to do PVP all that time, but since stopped for cuz it got boring without pvp gear and such, and because I've already gotten the highest kill count achievement in the game
As of now my favorite WoW expan