The first horseman is absolutely the antichrist, the counterfeit Christ.
He has a bow, and wears just one crown.
Rev 6:2 And I saw, and behold a white horse: and he that sat on him had a bow; and a crown was given unto him: and he went forth conquering, and to conquer.
Jesus on the white horse has many crowns, not just one, and He uses a sword, not a bow.
Rev 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war.
Rev 19:12 His eyes were as a flame of fire, and
on his head were many crowns; and he had a name written, that no man knew, but he himself.
Rev 19:13 And he was clothed with a vesture dipped in blood: and his name is called The Word of God.
Rev 19:14 And the armies which were in heaven followed him upon white horses, clothed in fine linen, white and clean.
Rev 19:15 And out of his mouth goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God.
Rev 19:16 And he hath on his vesture and on his thigh a name written, KING OF KINGS, AND LORD OF LORDS.
The antichrist comes first, before Jesus does.