Read The NDP are cowards, what should true progressives do? by Paulitics. He makes some interesting comments on which voting systems the élites support and oppose.
One does not need to be an NDP supporter to understand why certain people are opposed to MMP. Some of their names can be found on the NO MMP website.
The who opposes MMP will matter as much as what they oppose. We need to get the voters of Ontario to understand this point.
As a sidenote: please look at my poll on which voting system you support. Check the area code where you live. I'm trying to see if there are regional differences. If you make a mistake, just change your vote or click Mistake vote. Also, send me any info on candidates supporting, opposed or neutral on MMP by leaving a message in the comment sections or by emailing me at firstname.lastname@example.org.