@Frank Apisa,
Style is secondary to effect, it's a means to an end. A toreador who forgets to kill the toro is dead meat, whatever the splendor of his style.
Mohammad Ali was a classy boxer, but he also had the killer instinct. He could finish off his adversaries without mercy, after he tired them with his technique.
Biden will need some of that fighting-to-the-bitter-end spirit, in my opinion.
Edit: He is right to fear that Trump will cling to the White House against hell and high water. This will most probably happen, especially of course in a contested state scenario à la Florida 2000, though a landslide vote for Biden across multiple swing states can avoid that scenario. So Biden needs to win by a rather significant margin.
He will need more than good form and natural class to do that. He needs to channel the nation rage against Trump. I don't mean shouting. I mean the use of ascerbic, aggressive debating, showing how much of a joke he is. I mean no mercy for the clown. Biden needs to demolish Trump.
In style, if possible, but personally I mind the result more than the grace of its execution.