Good Prime Ministers we never had

[StevieBee]

By way of expanding the Good Prime Ministers thread, what politicians have there been that would have made good ones but never had the chance?

I always thought Michael Heseltine had the gravitas and chutzpah to be a good one.

And by way of balance, whilst not my politics, I did have a lot of respect for Tony Benn and thought he'd make a decent leader.