The tables below show the monthly averages polls where voters were asked which Leader would make the best Prime Minister. Polls from before 2019 are sourced from Mark Pack’s archive of polls, which can be found here: https://www.markpack.org.uk/opinion-polls/
Boris Johnson vs Keir Starmer
Boris Johnson vs Jeremy Corbyn
Theresa May vs Jeremy Corbyn
David Cameron vs Jeremy Corbyn
David Cameron vs Ed Miliband vs Nick Clegg
Gordon Brown vs David Cameron vs Nick Clegg
Gordon Brown vs David Cameron vs Menzies Campbell
