This was going to be easy. Ketchup was going to get the boot and then Miracle Whip showed up to take one for the team. Since we have to choose just one, ketchup gets a brief stay of execution.
Miracle Whip. It tastes like vomit to me. The worst "surprise" is discovering someone made a salad with it and you expect mayo but get miracle whip. I am not picky at all; but this makes me wretch.