Not saying the polls are honest, but I bet Biden sees a bump coming out of this.
Expectations were much lower for Biden, so I'd say he captures the win on this one.
That's about what I expected to see following this debate. Biden came off as non-senile, POTUS came off as cocky. Advantage Biden, given the assumptions going into this.
He had none already. He was playing to the other side, and did well there.