What is the most part in SEO (Your input please)

In my experience I found keywords density the most important work

 

Keyword Selection is the most important and crucial. With a wrong keyword selection all the other activities will be useless.

 

quality backlinks, good domain name if possible, well built site ( easy structure for google to crawl )

and of course all of this is only useful if you have GREAT and preferably ORIGINAL Content

 

yes I m agree with you, use natural way to get backlinks............

 

SEO is dynamic depending on which search engine you are optimising for. For example, google takes the ratio of inbound links to outbound links as a very powerful factor. Bing and yahoo tend to take onpage factors more seriously.

 

Meta tags, and build quality back links.

 

Everyone say content... Content is King ya we agree but what about the concept. It will be the same right. I would go for link building(off page optimization) rather than concentrating on content. because eg if you want to sell some spare car parts in a website like that 10000+ websites will be selling it. what to write in content for selling that? Write a page full of essays or what? Try a good white hat link building.

 

Bavklinks bulding is no 1.

 

Agreed — great content and building good backlinks (which often come naturally to great content).

Also — you can get rapid improvement in your rankings by doing good keyword research and incorporating the results of that keyword research in your title tags.

 

Link building!