Here is what I would need from a "perfect" candidate:
Supports life (no abortions, no euthanasia, no death penalty).
Supports the disadvantaged (welfare, universal healthcare, universal education).
Supports workers (we wouldn't need unions if our rights were better represented).
Supports our heroes (military, police, fire, rescue, astronauts).
Reduces governmental bureaucracy (less governmental intrusion on businesses and institutions - more incentives for progressive and moral activities).
Reduces government snooping (doesn't censor the Internet, eavesdrop on citizens, or place cameras all over the place--we're doing a good enough job of that ourselves).
Doesn't treat companies and corporations as citizens (especially when they don't act like them).
Supports free trade as long as the rights of workers are met.
Supports governmental transparency (regularly publicizing in easily understood formats).
Supports immigration (and improving the process for people to immigrate).
Works to improve conditions all around the world (realizes that isolationist attitudes lead to civilizations' downfalls and that a consumer-based economy, such as ours, benefits from more customers).
This is just off the top of my head. I'm certain that there's more. I don't want much, do I?
As I said, the chances of such a candidate coming along are rather slim. Despite this, I do, however, vote. I vote in national, state, county, and township elections. The closer the politics are to home, the more important it is that my voting "voice" is heard.