For me it was Italy 1990, when Diego ran through the Brazilian defenders, and passed the ball between the legs of a defender to Caniggia. http://www.youtube.com/watch?v=4ofYTWi6_dA Probably not his best and most discussed moves, but it's the most memorable moment for me. The 1990 squad was one of the least entertaining Argentina national teams, but man that team was full of bad asses. Their defense was like a brick wall, and it was extremely difficult team to beat. Maradona was a unique player. He often won the matches all by himself... one 10 seconds of genius was enough to end Brazil's tournament back then.