While I like Jim Geraghty’s point, here (spoiler warning: he and I think that ‘C’ is the best way to put this):
Which argument is likely to be most effective?
A) School choice is a good idea because it is consistent with the conservative principles that the government that is closest to the people is most likely to make the best decisions, is most accountable for those decisions, and is easiest to correct those decisions.
B) School choice is a good idea because it is consistent with the libertarian principles that the power of the state should be limited and the power of the individual should be maximized.
C) School choice is a good idea because it puts decisions in the hands of parents, who know what is best for their children.