sailors choice vs sailor's-choice

sailors choice and sailor's-choice both are nouns.

Word	Noun	Adjective	Verb	Adverb
sailors choice	Yes	No	No	No
sailor's-choice	Yes	No	No	No

As nouns, sailors choice and sailor's-choice are synonyms defined as:

sailors choice and sailor's-choice: a grunt found from Florida to Brazil and Gulf of Mexico

Other synonyms of sailors choice include Haemulon parra.

sailors choice (noun)	sailor's-choice (noun)
a grunt found from Florida to Brazil and Gulf of Mexico	a grunt found from Florida to Brazil and Gulf of Mexico
	similar to sea bream; small spiny-finned fish found in bays along the southeastern coast of the United States