Oh? What was it that you saw Dante do that Nero would be helpless agaist?
Nero's only plus-side was his demon arm, but now the new Dante has a weapon which can do exactly the same AND more. New Dante has healing powers, his weapon can morph into several forms, he can dash through the air to avoid attacks and to reach places that would normally be too far to reach with a single or even a double jump and he just shrugs off the fact that a whole demonic city is out to kill him by making a simple joke. And unlike the virgin Nero, Dante just got laid with two (or maybe more) chicks (or dudes, we don't know yet, but probably chicks) the night before he gets attacked by a huge f*cking demon and several minions.
Nero's got nothing on the new Dante.