1: Metal Gear Solid (no series will ever even come close to touching this series imo)
2: Mario Kart because ive spent countless childhood/adult hood years playing the many games with friends and family
3: God of War purely for the epicness and violent aggression I can lay out. Its fun to just be a pure badass sometimes.
Nods would also go to Grand Theft Auto, which honestly I was torn between GTA and Mario Kart. Ive prob spent more time and had more fun playing GTA but I just had to follow my gut and list my list as such.