I like to see this. Especially this part:
> Under [Condorcet voting], [… candidates] would have to worry about how voters of the other party would fill out their ballots.
This is key. On the other hand, I really don't like the sound of voting for parties instead of individuals, as in proportional rep. Both for the coarseness of a vote's expression and the unappealing nature of the major US parties on offer.