mmm it depends, an argument generally leads me to walking away, nothing good ever came from an argument.
A debate on the other hand... this may sound horribly geeky but when I was in High School I took part in the debate club, and even before that my grandfathers both taught me the skill of debating and how to use it as a positive, I love it, but you've got to be careful with who you debate.
If used correctly a debate can be both informative and a great deal of fun. I love it.
My grandfathers were on opposite sides of the political fence, one right wing and one left wing, but very good friends none the less, respecting each other, disagreeing on points of interest, but respecting each other none the less. I remember Sundays out fishing where they'd give me a topic and make me take the side I disagreed with and argue for it.
You can learn a lot doing that, not only about the other side, but about more effective arguments to make.
I think the skill of the debate has been lost today to a great deal, and people really don't get that you can disagree with someones opinion without hating them. I don't hate some right wing people, I just disagree with one point of their agenda, after all, people aren't just one of their points of interest.