choice vs preference

choice and preference both are nouns.

Word	Noun	Adjective	Verb	Adverb
choice	Yes	Yes	No	No
preference	Yes	No	No	No

As nouns, preference is a hyponym of choice; that is, preference is a word with a more specific, narrower meaning than choice:

choice (noun)	preference (noun)
the act of choosing or selecting	grant of favor or advantage to one over another (especially to a country or countries in matters of international trade, such as levying duties)
the person or thing chosen or selected	the right or chance to choose
one of a number of things from which only one can be chosen	a predisposition in favor of something
	a strong liking

choice (adjective)	preference (adjective)
of superior grade
appealing to refined taste