preference vs predilection

preference and predilection both are nouns.

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

As nouns, preference and predilection are synonyms defined as:

Other synonyms of preference include orientation.

As nouns, preference and predilection are synonyms defined as:

Other synonyms of preference include penchant, taste.

preference (noun)	predilection (noun)
grant of favor or advantage to one over another (especially to a country or countries in matters of international trade, such as levying duties)	a predisposition in favor of something
the right or chance to choose	a strong liking
a predisposition in favor of something
a strong liking