I haven't voted. It would just be a total guess. Perhaps bias (Contador) made these predictions easier in the past. Imagine if Bernal was still in it?!
Roglic - The form rider of the season, the rider with the greatest career upward trajectory in last 18 months, can do it all, there is only the 3 week question.
Dumoulin - Best time trialler and is proven over 3 weeks many times. A very good climber, but good enough against a really great climber on form?
Yates - A super climber when on form and a much improved time trialler, does winning the Vuelta erase the question mark from the Giro?
Nibali - Multiple grand tour winner, very strong at the end of those GT's, and this is backended, age is against him, but he always has voodoo.
Lopez - Poor ITT, but a very good climber and proven over 3 weeks. Poor in short hilly finishers, but there are not too many of those, good form this season, age is on his side.
Landa - At his best, perhaps the best climber in the race, and he has shown that form at the end of a GT. Can he return to that level? He is still quite young, LBL was encouraging.