Thank you?
In what context would you use "de nada" versus "no hay de qué"? Is one less formal than the other?
3 Answers
In Mexico there is a feeling, but extremely slight, of more formality with "de nada" than "no hay de que."
I agree with Pablo that "con gusto" or "con todo gusto" is the most formal.
I'll give some examples:
-Gracias por ayudarme. -Con gusto.
-¡Gracias!
-De nada / No hay de qué.
I think they are both the same, how common they are used? I think that depends of the country, Im from Costa Rica and I always use "de nada" in formal or informal situations. "con gusto" I would say it's a bit more formal.