Hugo Koblet said:
Contador solid in the 2011 Tour? What race did you watch?

He was way below his usual level. And in 2015 he was bad as well. Contador has shown that he can't do the double. No shame in that.
Froome is the best GT rider and is the rider capable of peaking over the longest period of time. If he set his mind to it, I would definitely rate him higher than Contador for a double attempt.
Also, could you point me to a few results where Froome has been affected by the bad weather? Honest question, because I don't really remember any.
This really doesn't have any sense

Of course he was below his usual level in TdF2011, he was attempting a non-planed Giro-Tour double, what would you expect? He lost time because of a crash and if I rememeber correctly he himself crashed then also. Then of course hhe made crazy attacks and tried to find his luck, which is adorable IMHO. His performace was good and I still believe he would be on the podium without the stage 1 stupid crash.
Why do you want me to point out Froome's results affected by the bad weather. Froome? The guy who is hiding his ass in South Africa because it's too cold in Europe? This Froome should win on Passo dello Stelvio? Mate, I climbed it once in August and it was -5 and snow there ;-) I rememeber Froome being 100+th in some spring races, once it was Tirreno I believe? But it's obvious he chooses races with good weather conditions. and nothing against it, I would do the same, but still it's very questionable how would he deal with weather in Giro - see Rafal Majka for example.
and once more again:
from the group Contador, Froome, Quintana and Nibali.
Who won two GTs in one year?
Contador
Who at least tried G-T double and was at least top 5 in Tour?
Contador
Who has won Giro so far?
Contador, Nibali, Quintana
Who won Vuelta 2014 after participating half Tour?
Contador
Who admit himself that dislikes bad weather?
Froome
Which GT has the more demanding weather conditions?
Giro
Who was not a all good in Vuelta after riding Tour as a domestique?
Froome
and yet you consider Froome the best for double, this is beyond me. I don't say that Bertie would have a better than very small chance to win the double, but that's because with the others riding only Tour it's almost impossible. Still I believe that he's the best choice. Froome hasn't showed anything so far which would make him a favourite for giro-tour double. LaFlo has a point with Froome not able to win Giro - so far he didn't even try to and the theory is against him.