At the risk of throwing a cat amongst the pigeons.....
My DH insists that the only way to eat a Hot Cross Bun is to first toast it, and then butter it.
I, on the other hand, think that you should not toast Hot Cross Buns as they lose much of their flavour (spices and fruit peel) in the toasting process.
'Real' butter, in thick lashings, is obviously required. That must be not negotiable!
I won't even get into the debacle of fruitless Hot Cross Buns, lol