advantage vs prefer

advantage is a noun but prefer is not a noun.

Word	Noun	Adjective	Verb	Adverb
advantage	Yes	No	Yes	No
prefer	No	No	Yes	No

As verbs, prefer is a hypernym of advantage; that is, prefer is a word with a broader meaning than advantage:

Other hypernyms of advantage include favor, favour.

advantage (noun)	prefer (noun)
the quality of having a superior or more favorable position
benefit resulting from some event or action
(tennis) first point scored after deuce

advantage (verb)	prefer (verb)
give an advantage to	select as an alternative over another
	like better; value more highly
	promote over another
	give preference to one creditor over another