Hard to tell, it should be very interresting match, both guys have similar game, big powerfull groundstrokes, great serve and net game, but Berdych has better ROS, so i think this could be what will be deciding. Also their play only once - in Beijing few weeks ago and Berdych was better player, he was winning his service games easier, also TSonga generally sucks against players like Berdych.
Berdych in contrast struggled to beat an under par Djokovic, eventually losing, and Tipsy had match points against him. And heaven knows Ferrer was a break and a set up at 4-3 in the second set before crumbling.
It'll be a Federer Tsonga final. And it'll be a great match.
Berdych deserves it a little bit more. But I predicted Tsonga/Fed final, so Tsonga will win in 3 tough ones. Tsonga needs to play it smart, Berdych chokes big forehands when he has some golden opportunities, so Tsonga should be able to defeat him via less UEs and a better serve since the Berdych serve isn't consistent as his.