Dante Vs Vergil in DMC 3 showed that they are easly bullet timers, Vergil grabbing all bullets shot by dante with his sword and lining them up is more than enough feat to put them above. The Rainfall feat is absurdly fast aswell. They are far above lighting timers because Dante is already in that speed mark in his base with Alastor. The Picca feat is nice to show how strong Zoro is but don't forget that he was thrown with an astonishing speed to do that. And Dante in DMC 4 cut through a hill sized monument with ease using Yamato. These feats are all done in Base. Plus Vergil has enough hax to back it up like space bending, time manipulation, teleportation, regen and cloning himself. I love Zoro but he will lose this matchup.
At 5:13 you can see the monument feat