I love BJ, but his boxing is nothing like Edgar's stylistically. BJ has more power behind his jab and is content to stand in the pocket. Edgar uses more accuracy and movement and Aldo falls between the two and uses excellent kicks.
And MMA is not about individual skills but how you put the all together. Aldo is an extremely dangerous opponent and it would be silly to think he only has one way to win this fight.
Learn from the mistakes of others. You might not live long enough to make them all yourself. - Jigoro Kano