What counts as standard equipment for Dante? Also, which version? The fan art you posted is of DMC 3 Dante, and if that's the version, the twins get stomped hard. If it's DMC 2 Dante they definitely stand a chance. Also, special abilities. Does Dante have access to all his styles? Does Vergil have access to his style, does Vergil have access to his mission 20 boss abilities. Is this DMC 3 Vergil, or is this Corrupted Vergil, aka Nero Angelo?
Thor wins. He's survived 20 planets, taken Silver Surfer to the face on his own, his hammer made up of a dying star ((which I think can really hurt Dante and Vergil)) to the point, the half demons have their ribs broke. Adding World War Hulk is slaughter.