I've played GTA Online since release, and it's still a go to game for me.
In terms of open world games, it's the beez neez. The graphics are outstanding, and the physics are even more fun. Car crashes are a blast each and every time. The fun mechanics are phenomenal too, and this is all without bringing up how much fun I have with friends and more importantly, my wife (Yeah...she's a gamer for me when I want her to be). We've driven countless hours over countless heists, and had fun socializing.
While GTA is the bomb, Just Cause 2 was great enough to keep me on it for months. The fun exploration and insane stunts were so new at the time. The graphics were wonderful too (important to me) and sometimes I'd just cruise, looking around the world in admiration. I also loved climbing to the very high ceiling of the world, and then skydiving for 10 minutes to get back to the ground. I hope I win, because I blew my money on so many games recently, but not Just Cause 3, but I loved 2 a lot. If I don't win, I'll get it early next year after Christmas.