I_Cheat_U_LOSE
Sucks 2 Be U
I’ll play devil’s advocate and vouch for Archer since there is overwhelming support towards Dante.
Archer’s ability to trace weapons basically makes him a swiss army knife. As long as there’s a weapon that can turn the tides of battle, Archer can copy that weapon (even legendary weapons) and use it himself. Hence he often states, if you cannot defeat your opponent, then imagine a weapon that can.
Archer can trace Gae Bog to stab Dante in the heart and negate his regeneration. Dante has survived stab wounds, however that’s because of his regeneration. With regeneration negated, Dante won’t be able to survive. Also Archer can trace Rule Breaker to negate Dante’s ability to use his special abilities, in this case: devil triggers.
Archer also gains the skills of the wielder when he traces and uses a weapon (clairvoyance ability). Thus if Archer traces Yamato, he gets Vergil’s swordsmanship skills which is more than enough to defeat Dante. Likewise, if he traces Rebellion, Archer gains the skills of Dante.
Archer’s tracing ability is not just limited to blades, he can also trace shields. Archer can trace shields (ex: Rho Atlas) to block Dante’s gunfire and his most powerful attacks (ie: in Devil Trigger mode). Since guns barely do any damage in the DMC universe its doubtful that bullets can kill Archer even without tracing a shield; most fights in DMC and FSN are won using blades, and Archer (aka The King of Blades) has every blade at his disposal.
Thought not that significant, it should be noted that Archer has the eye of mind ability, which guarantees his at least 1% to win every duel. Thus Archer always has a chance of defeating his opponent(s).
Finally Unlimited Blade Works, sends the battle into a pocket reality and gives Archer disposal to any weapon upon mere thought of it. Also within Unlimited Blade Works, Archer can telepathically control blades. With every weapon within the FSN and DMC universe at Archer’s disposal there’s bound to be a weapon that exist which Dante has a weakness to, and Archer can copy and use it. In a sense, fighting Archer is like fighting an opponent with a weakened version of reality manipulation and projection; Archer’s abilities being limited to projecting weapons and shields.