Bookies top 3 are:
Van Gaal 7/4
Giggs 6/1
Klopp 10/1
There's problems with all of those though. As you said, Van Gaal is tied up until the end of the summer. Giggs doesn't have all his badges yet and has never managed before. Klopp allegedly told Barca/Madrid/Utd/Chelski/City to do one over the last 2yrs when they've offered him jobs, he's not interested.
De Boer would crawl over broken glass for the job, you'd think. Martinez would be an amazing story, and strangely, I think he'd find it harder at Utd in some ways. He's been left with a defence that knows its job inside-out, and it gave himself a bedrock to build upon. Utd need a new back four.
He'd be absolutely insane to consider it.
Heh, some hunchback looking guy outside Old Trafford on SSN just said that he'd like Roy Keane.
That would be amazing.
The reporter on talkshite just said that there's building work opposite Old Trafford on the 'Giggs Neville Hotel'. Wtf?