Gonna be that person that didn't watch the movies when I was young so I have zero connection with the franchise (first movie I watched was Crystal Skull when it released, and then only watched the others over a decade later) and when I finally got around to watch them as an adult I could not connect with the movies, as I couldn't get past the casual racism and misogyny in them, specially Temple of Doom. Which is a shame, because the premise is great, and those movies would be even more interesting if they offered a genuine, respectful insight on those cultures instead of portraying the cultures they explore as bad caricatures that are based on a white, often ignorant, anglocentric point of view. And yes, they can still portray the supernatural elements in it without casual racism. And yes, it is a product of its time, but I did find it hard to enjoy those movies.
If I had to pick an order though I'd probably say Raiders > Last Crusade >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Temple of Doom.