President-elect Donald Trump and Labour leader Sir Keir Starmer are tied in the popularity stakes.
About one in four Britons has a favourable view of each man, according to polling by Ipsos.
However, Reform UK leader Nigel Farage tops the favourability rankings with a rating of 28%.
This is ahead of Mr Trump (25%) and Sir Keir (23%). The three-point margin of error means the re-elected Republican and the Labour leader are neck-and-neck.
Newly installed Tory leader Kemi Badenoch and Liberal Democrat leader Sir Ed Davey were both seen in a favourable light by 21% of Britons – ahead of Chancellor Rachel Reeves, who scored just 18%.
Mr Farage has urged Sir Keir to invite Mr Trump to come to the UK for a state visit in the year ahead. He would receive the most enthusiastic welcomed from Reform UK voters, 59% of whom have a positive view of the US leader. This compares with just three out of 10 Tory supporters and 18% of Labour voters.
Mr Trump would be less pleased to learn that more Britons have an unfavourable view of him than of any of these political figures (58%). This is higher than the unfavourability ratings of Ms Reeves (50%), Mr Farage (48%), Mrs Badenoch (39%) and Sir Ed (31%).
