During the day I work at a web development firm. We are currently having a debate on what google emphasizes when determining placement, so I thought I would ask you guys on what you thought.

Incoming Links
Outgoing Links
Recipricol Links
Content (emphasizing search term)
Placement of content on page
Meta Tags

Just curious what you guys think on this and other other tips you might have to boost google ratings. None of the sites I work on for this job are in the adult entertainment industry niche, but optimization is the same regardless of niche.

Thanks