I think I like the Highland dancing slightly more, but that may just be 'cause I've seen more of it live. When she was dancing last night, I thought it looked different somehow, and then realized...duh! She was dancing Irish steps.
If I wasn't such a clumsy oaf, I'd like to take either one, though!
Isn't the Highland dancing more of a jig type? It's not percussive like the Irish step, which is what I just LOVE!