Definitely Suarez. It seems that the probability of scoring by a penalty kick is ~75% [in pdf], so by stopping the ball with his hand (and being sent off) at the very end of the match he introduced a well known chess trick into football: Sacrificing the Queen in order to win. So far in my lifetime I have seen the hand of God twice, only now it was within the rules.
It is quite probable that the rules of the game will change: In such cases not only the player will be sent off, but the goal will count too.
URU vs GHA 4 – 2 (1 – 1)