favourable position vs vantage

favourable position and vantage both are nouns.

Word	Noun	Adjective	Verb	Adverb
favourable position	Yes	No	No	No
vantage	Yes	No	No	No

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

Other hypernyms of favourable position include advantage.

favourable position (noun)	vantage (noun)
the quality of being at a competitive advantage	the quality of having a superior or more favorable position
	place or situation affording some advantage (especially a comprehensive view or commanding perspective)