Going by your username - FIFA but should probably hold off until 12 is released.
Very active online but I virtually never play online. It's the 1 game I know I'll get my moneys worth every year because I'll play it as an 'in-between' game for the whole year. I get it on release day and whilst it's usually on offer I was forced to pay full price last year - but I didn't care.
Never managed to even get close to finishing a 15 year manager mode though, but that's because I bought a football (soccer) game and not a sim-a-result game.
Hulk is strongest one there is... Hulk is... only one there is... only one... there... is... Hulk feels... cold