Mr Gove.

Some reports have Michael Gove ahead of the field in the race to the poisoned chalice - sorry - I meant the Tory leadership.
Far be it from me to try to stop them from inviting oblivion by taking on board this weak and sneaky individual but even the I-put-on-a-pretence-of-being-eccentic Boris is a better bet. (Many people have fallen hook, line and sinker for the weird one.)
Common sense would make it Raab but then, common sense is not what the Tories are renowned for these days.