All of them! KC has opened the door to them all! They know Valentino has been dreadfully undermined with bike and tyres, they know he will make a couple of mistakes a year ( which is fine by me, that's what makes him such an unbeatable mix - completely human but still capable of utter breathtaking riding and skill. The mistakes bring his brilliance more sharply into focus, if you ask me!) and also the whole psyche thing of having Rossi on your a*se for the last 7 laps of a race... it used to draw mistakes... but know they know if they hold firm, his bike might break down instead and take care of the problem for them.
Dani, Marco, possibly KC, but he's now a marked man, so he might get a lot more sh*t than he did this year... Hayden might find his dignity next year and race like a former WC in a way he never raced like a WC.
It's so hard to tell, isnt it? They're all fast, ambitious, detirmined. But not as clever and talented as Valentino. Hopefully this year, unlike the last two, that will finally count for something.