Some locations onSurvivorare more scenic and special than others.
And not allSurvivortwistsare created equal, with some sizzling and some fizzling.
But ultimately, the success or failure of each season really all comes down to casting.

Credit: Monty Brinton/CBS
Debbie caught our attention from the moment we met her, says Probst of the 49-year-old chemist.
How much of it is fully true and how deep her knowledge goes is a question to be answered.
But I have zero doubt the audience will have a take on her very fast.
Probst is also bullish on the casts two oldest contestants, including a 51-year-old Vietnamese gardener.
Tai is going to be someone the audience gravitates to very quickly.
We also have Joe, a 72 year old former FBI agent/hostage negotiator.
Hes an easy target because of his age and there isnt anything he can do about it.
I think the toughest part for Cydney will be the lack of calories, says Probst.
Cydneys body is really a work of art.
Is Kyle all bark or is there some bite there as well?
His appearance could definitely lead to a first impression of a hard, scary guy.
But he does have a very nurturing quality to him.
The question is, which part of his personality will win out under the extreme conditions of this season?
Well find out whenSurvivor: Kaoh Rongpremieres on Wednesday at 8 p.m.