My memory goes back to McMillan (just).
As for feeling sorry for Johnson because he has a pandemic to deal with, Brexit and a small baby. Boo hoo.
I doubt whether he is getting up in the night to see to the small baby.
Brexit - a mess of his own making.
Pandemic - unforeseen, but handled badly, with dithering and failed contracts wasting taxpayers money awarded to cronies.
Could one person have handled it better? That's what they have a Cabinet for you know - to spread the load, not just to be nodding dogs to massage a PMs ego.
People mentioned how others had to deal with wars. As with the last War, Chamberlain got the boot, to have Churchill installed, with Attlee, as effectively PM for domestic issues. I.e. a joint effort in the war time coalition, in circumstances just as difficult in their own way.
Harold Wilson handled his Referendum much better - he was dealing with the same sorts of divisions within his party, but then, he always had a reputation for being crafty.
We might yet see the break up of the UK within the next ten years.
So I would put Johnson as the worst, followed by Cameron.