What is the best approach when it comes to get traffic with the following types of pages?

Squeeze page
For getting people signing up to your list and doesn't have much conent.

Sales page
For selling your own product and does have a decent amount of content.

Regular page/Blogg
For selling affiliate offers or own products but is more informative and has very much content. Also have the ability of collection subscribers.

And when I say traffic, I mean from a Google perspective (in the first place).

This is what I think and correct me if I'm wrong:

Squeeze page
Not enough content for being indexed in the organic search so therefore PPC is the best approach. So the SEO approach maybe out of the question.

Sales page
Probably enough content for SEO, but maybe not the right kind of content that Google likes to see in the top ranking positions. So i figure PPC might be a better choice.

Regular page/Blogg
This one would be pretty perfect for SEO so no need to use PPC (but could be done of course).

This is what I think. And your velcome to correct me if I'm wrong.