Creating, editing, and promoting unique high-quality content is difficult and time consuming but in the end golden rule of seo is that content is the King. It's not just because of a Search Engine but it's for your site visitors also. A page that is read by people is better than a page that is read by search engines spiders and bots.
It's not only SEO, you have to think about many factors that will make your site popular :
1. If your website is having something really unique then people would like to suggest it to their friends.
2. Other webmasters would like to create a link of your website on their sites.
3. Your site visitors will start trusting on your site and they will look forward for the next content and will keep coming again and again.
4. Assuming you have been listed out by any search engine but net surfer will click only that page whose content snippet would look more unique and interesting.
So remember that always write your content after going a serious thought. Keep your title, keywords, link text, meta tags up-to-date and unique and interesting.
I am sure you will win........................