I am thinking it is AVB.. If we haven't gone for Lambert or Martinez then we are running short of Premier League experienced vibrant managers. It's not McCarthy as he isn't vibrant, he's a minor step up from McLeish. AVB ticks all the boxes, he did the miraculous at Porto and while he lost the dressing room at Chelsea his age went against him with some of the talent in their squad, I don't think they respected him..
At Villa I think he would do well and it won't be the same as Chelsea, yes we have some big ego's at the club in the form of Dunne and Collins but AVB at Chelsea was forced to muddle through one season before rebuilding, the players knew this and made it very difficult for him to succeed. At Villa, he'll be tasked with rebuilding the second he gets here so it's a different scenario.