In a contemporary sense or in a historical sense?

Obviously the latter is virtually impossible to determine but I suspect he’ll be somewhere in the top 5.

Just as obviously he’s #1 in a contemporary sense. There is a lot of hate for Obama from people who swear they aren’t racist, but moderates and Democrats like/love him. I feel like Biden is universally slightly disliked.

Trump, on the other hand, is between vilified and slightly disliked recently (thanks to the Iran War and the Epstein Files). Sure, lots of people pretend to like or love him in public, but I think that’s usually performative to align with political allies as you’re virtually obligated to do under authoritarian rule. Just look at how few MAGAs turned out for America’s 250th. They just aren’t enthusiastic about him any more.