If logical thinking was applied - it would indicate that neither Froome, nor Nairito would win it, since both are "suppose to be tire from the Tour" and therefore Aru & Landa* were the rightful candidates for the overall title ... but then again... this is the "New Clean Pro Cycling era" that we're dealing with
I recall back in 2012 when Froome was committed to win La Vuelta after his runner up Tour spot and the Wiggo affair- back then he showed good form during the first testy stages, but
then he literally blew up completely halfway the race & during the last week - so that is the reference we're taking in consideration for his real aspirations to this year' title.....
Then is Nairito- he's done this past tour as his main objective for the year and ended up behind Froome....
He was "progressively getting stronger towards the last week" and almost pulled it off.... the real question is -how much energy did he spend in the Tour? is he fully empty or could he "repeat the same strategy in the Vuelta, by getting stronger in the last week too?
and last there is the Angel Aru...... last year he performed really well during La Vuelta after his Giro's 3rd place, so that means he can recover well and perform well too doing the Giro-Vuelta combo...... but the big issue about Fabio isn't about performing great and winning stages- the big question is can he win a GT yet?
PS: perhaps this is wishful thinking, but can Purito finally win a GT?