these top tribe boards are such a waste of space.....this is a game of duration, it goes years. What you see today will be different in a month and different yet again in six months.
A good analysis of a tribe would be a complete analysis of the players in the tribe. Many EXPERIENCED players are fantastic early game players then they get board and move on, or something happens they didn't like and they quit. The tough tribes are the tribes who have large amounts of experienced players who have played for durations or have built huge accounts. These type of players know how to move large amounts of troops around, they thrive in adversity and they love nothing better then banging heads with their opponents. Some of them can even be mediocre players, but they don't quit and that makes them dangerous.
Start looking at this thread one year from now and you will get a good picture of the top tribes.