Right now I expect it to be Vettel winning the race, but I'm going to go with my heart and put Kimi on the podium, along with Button.
If the Lotus really is as good as they showed in testing, then Kimi could well win the race. Grosjean has tyre management issues still from what I understand, so he'll be quick, but will take a few races to get to grips with the tyres.
I don't see why you think Kimi will make too many mistakes to be a contender (provided of course the car is good enough). I would say Grosjean will be the weaker link in the Lotus this season, and will be the reason that they might not be able to challenge for the constructors title.
Webber will be the same as ever, good, but not great, Hamilton is going to crack I think under the pressure, and Button will solidify his position as McLaren's best hope.
I want to see Nico do well, and if the Merc is good, then he will.
Personally also hope that the Ferrari remains as slow as it is ugly, and driven by a Spaniard

I don't like the team, don't like the drivers, so I want to see them get worse and worse
