The more I think about it the more I think Clinton/Kaine came out ahead, but Pence definitely held his own and probably won the debate in a traditional sense. I think Kaine did a great job proving Trump was indefensible, which is what the Clinton campaign wanted, but Pence did well enough holding his own that he came off as the top tier Conservative Candidate for 2020 or 2024.
The liberal in me sees Pence is reprehensible, but I have to admit his composure was a strange contrast to Kaine's enthusiasm. It's funny, basically the exact opposite of Trump/Clinton, where the Democrat was generally waiting their turn and polished, but the Republican was shouting over and interrupting. It's like they flipped roles entirely for the VP debate. I still think increasingly that Kaine succeeded in every way he wanted to by focusing his attacks on Trump, and Pence's affiliation and support of Trump. It should hurt the GOP this cycle, but Pence did a great job holding his own and seeming like a well polished traditional Conservative Republican.