What is the difference between helping a Moms and Pops store versus a large corporation?

There is a lot of debate going on about America and its Capitalist ways. I think we as Americans need to step back and take a look at the issues. I hear a lot about what the problem is, but not how it can be solved, so I’d like to develop more of a stance for how I shop.

1. What is it that we really want?
2. Do we want small little businesses to be successful?
3. Do we want to to only expand a certain amount of stores and then cap them?
4. Is hiring low wage workers really evil?
5. Would it be better to hire 4–7 of a family running a store or 50–200 people in a large corporation?
6. Which helps the economy more? Which is morally correct?