strong point vs strong suit

strong point and strong suit both are nouns.

Word	Noun	Adjective	Verb	Adverb
strong point	Yes	No	No	No
strong suit	Yes	No	No	No

As nouns, strong point and strong suit are synonyms defined as:

Other synonyms of strong point include forte, long suit, metier, speciality, specialty, strength.

strong point (noun)	strong suit (noun)
an asset of special worth or utility	an asset of special worth or utility
	a long suit including high cards