I want a dry as possible, race. The drier the better.
This is probably one of the first races (in a long long time) where RBR are not going to have the fastest car on the track (in race trim). Vettel barely got pole here, meaning that they are on the limit. This season has shown that RBR's race pace is slower than their qualifying pace (compared to other teams). My belief is that Ferrari and McLaren both have a faster car than RBR here (in race trim).
In identical conditions to yesterday, ie. dry, I think Alonso and Hamilton can beat Vettel today.
Should it rain, any advantage which Ferrari/McLaren have, will be gone.
If it rains, Vettel has to consider himself lucky. Also consider that Vettel is a decent wet weather driver.
When I want rain is if RBR are 1s/lap faster than the rest. In that case, the only chance other teams have (to beat the RBR car) is rain.