winner vs doer

winner and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
winner	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of winner; that is, doer is a word with a broader meaning than winner:

Other hypernyms of winner include actor, worker.

winner (noun)	doer (noun)
the contestant who wins the contest	a person who acts and gets things done
a gambler who wins a bet
a person with a record of successes