That I don't know about. I'm not sure what kind of difference that would make. At one time, I worked at a place that had a union, so I know a little how both sides can make it sound like they're the party to be pitied. So much depends on your perspective and what you're trying to accomplish. Keep us updated.
Quick update-
Strike was declared for Friday, but now we're being told its on hold pending a vote by the teachers to approve a proposal. Most of the teachers I talked to today said that they haven't seen enough of the proposal to decide but truly hope that they can pass it.