If I never, ever see anyone on the internet
1. Referring to formal logical fallacies by name,
2. Referring to Godwin's Law, or
3. Acting like either of these things mean that they "win" an argument,
ever again, I will be extremely happy. I mean seriously. If it is possible for conversation to get stupider, I don't know how.
I think "strawman" is my least favorite, mostly because the bulk of the times that I see people invoking it, all it means is that they're too dense to understand what the other person is saying, typically because they don't know how to see the world outside of their own tiny little sphere of understanding.
(Inspired by looking over still more comment threads at Pharyngula.)