Duke's Mayonnaise:
Is the standard against which all other prepared American mayonnaise should be judged. Of course, if that happened, all other prepared American mayonnaise would come up short, and some brands would come up very short indeed.
Hellmann's? Too much water. Blue Plate? Too "creamy," as in not enough body. Kraft is the same, only worse. Way worse. JFG? Too artificially lemony; lemon OIL is one of the ingredients.
Duke's is thick, tastes intensely of eggs and oil as mayonnaise is supposed to, and does not turn runny when combined into things like tuna or chicken salad. It also has one other huge virtue: It has no sweetness whatsoever, like some lesser brands do. Thank you, but if I wanted Miracle Whip, I would buy Miracle Whip. Which I bloody well don't.
Duke's is not even as high-priced as Hellman's. Duke's also makes a "budget" brand of mayo called Sauer's, which is nearly as good as Duke's for less money. Even better, they supply Sauer's as a private-label brand to other companies, including ALDI. Sauer's is far better than Hellmann's. But then, isn't everything?
The only thing I think Hellmann's is good for is for retirement-age Lawn Guyland housewives who want to put mayo on canned pears and call the result a salad.