The biggest advantage for small sided
games- players will touch the soccer ball more. In example
#1, there are two players touching the ball compared to only 1 player
thouching the ball in example #2.
In both examples, all the basic soccer principles are there (offense,defense, 1st attacker,2nd attacker, etc) but in example #1, those principle are easier for the players to recognize, identify and learn from.
In example #1, ALL players are one pass away so all players are in the game.
In example #1, more players will get opportunities to score which creates excitement.