For me, it's got to be Johnson.
He was a key (if not THE) face of the leave campaign, and whilst I have reservations about him, I think he's got to stand up, be counted, and deliver now.
The counter argument to that of course is that just because he was one of the key faces, it's not all about him, and we simply need the best man for the job to steer us through a potentially very troublesome period.
I can't help but feel the leadership and indeed the government is a poisoned chalice for the next few years. After that - who can say?
Some are of a view that our transition to prosperity will be quite smooth, I'm not, hence me believing there's turbulence ahead before any sign of sunshine.