I want Roger to be in Rafa's half. I want Roger to win, so one day he has to face Rafa. So it's better to be in SF than in Finals. Also in SF, he can play with less expectations compared to an event in which he beats the world number one and then play for the title.
If Roger is in Novak's half, and if he makes into the final, he still has the "king of clay" waiting for him? It would be really hard to play your best against Novak and win and enter the final with lesser hopes of winning since Rafa is a more tougher opponent. If he beats Rafa, his confidence would be sky high and also he is gonna play a player whom he has beaten in last year, and this would be a better position.
Let the agony end as fast as possible..I also feel that Roger is better off playing Rafa in a SF than in a Final