Coulter doesn't lie, and footnotes like crazy to back up what she says. Liberals just make $hit up.
That's content, not style. Coulter's approach is sort of like that which one sees in the House of Commons, but more sarcasm than irony and a lot of slang. I don't think she is actually a good debater. She tends to get emotional and shrill.It arises from her sincerity. But give her a place to plant her feet and she can be really great.