I've seen some of the other candidates saying they agree with Corbyn's policies in principle or that he was on the right track (prompted by media questions) - I don't have an issue with Corbyn per se but I do think Labour need a clean break from him. Any candidate that the media can paint as a Corbynista will be latched upon and the Tory's will use that too.
A lot of the other candidates are still wishy-washy over Brexit.
I've seen little so far as there's only a few interviews of each candidate on YouTube; but he's been backed by Unison, he is clear on Brexit - 'we are leaving, that discussion needs to be put to bed' and he's strong on the message that Labour has lost the trust of it's core base (it has), if other candidates can't accept that Corbyn lost this trust - how can they go about winning back those votes?
I'm hoping whoever wins can unify the party.
None of the candidates have a public manifesto or anything at this stage - people can look at past performance in public office but seeing as most of them tow the party line that's not super effective.