Which wins championships, offense or defense

Bear Bryant once famously proclaimed, "Offense sells tickets, but defense wins championships." Football statisticians have proved that wrong so I decided to check if that is true in soccer too. So I took a look back at MLS Cups and conference finals going back to 2002 and looked at the team's goals for and goals against to determine which team is better offensively and which team is better defensively. The results are below.

Better Offense, Better Defense	Better Offense, Worse Defense	Worse Offense, Better Defense	Worse Offense, Worse Defense
11	12	10	3

The takeaway here is that it doesn't matter in the battle between offense and defense. A trend I noticed was thyat generally, in the first few MLS Cups, more defensive teams won. In 2003, only better defensive, worse offensive teams won. In comparison, 2012 was only better offensive, worse defensive teams.