favor vs vantage

favor and vantage both are nouns.

Word	Noun	Adjective	Verb	Adverb
favor	Yes	No	Yes	No
vantage	Yes	No	No	No

As nouns, vantage is a hypernym of favor; that is, vantage is a word with a broader meaning than favor:

Other hypernyms of favor include advantage.

favor (noun)	vantage (noun)
an act of gracious kindness	the quality of having a superior or more favorable position
souvenir consisting of a small gift given to a guest at a party	place or situation affording some advantage (especially a comprehensive view or commanding perspective)
an advantage to the benefit of someone or something
an inclination to approve
a feeling of favorable regard