Churchill and FDR have more of a lasting legacy and positive image than Georges Cleamencau, Woodrow Wilson and David Lloyd George.
There are streets near me named after Lloyd George and Clemenceau, as well as a whole bunch of WWI battle sites. There are some named for WWII battles, but none for Churchill or FDR, AFAIK.
That being said, the horrible cost of WWI left a very negative legacy here in Canada. Perceived treatment of the "colonial" troops as expendable played in a huge role in the push for greater sovereignty for Canada, starting with getting Canadian troops under Canadian - instead of British - leadership and then leading to devolution of powers from Westminster to Ottawa, and eventually - arguably - to Newfoundland choosing to give up being a British protectorate and joining Confederation. The leaders of WWI, especially the British leaders, are seen as somewhat complicit in the slaughter of Canadians and Newfoundlanders, which takes a lot of the sheen off them.
Read the stuff out there about the Royal Newfoundland Regiment at Beaumont-Hamel and the absolute stupidity and recklessness with those soldiers' lives by the British command. It was a century ago, but thinking about it still makes me mad.