With the possible exception of his win over Hardy, Brown would be the easiest top 10 win Condit would have ever racked up.
Condit is better than Brown at every single one of his own strengths; pressure, cardio, power, chin, durability, and ability to capitalize when the opponent is hurt or makes a mistake. Additionally, he is much faster, has a better sub game, adheres to gameplans, is a superior counterstriker, and is far better technically on the feet and the ground. I usually agree that you can never quite count Brown out because of his heart, power, and chin alone, but Condit is like his super-powered doppelganger sent from another universe to destroy him.
Cliff notes - I'll stick to my original prediction. Condit via massacre.