Kevin Pietersen, of course.
Yes, he's hugely entertaining, a brilliant batsman and has just scored 326no for his county.
However, his county is 2nd division Surrey, his recent book roundly criticised his former England team mates and he has, according to Tom Holland on last night's Newsnight 'a Homeric ability to create chaos'.
For my money KP plays for KP not the team just as one Geoff Boycott did. And I write that as a Yorkie. I don't usually defend the ECB and I don't usually disagree with Mike Vaughan but I do think KP is flawed genius and trouble.
(And, of course, the Aussies will sledge us about it whether he plays or not.)
“There is always a well-known solution to every human problem - neat, plausible, and wrong.” H.L. Mencken