Well known SEO Analyst has reported the top 10 ranked factors across the 5 categories as:
Title Tag – 4.57
Anchor Text of Links – 4.46
Keyword Use in Document Text – 4.38
Accessibility of Document – 4.3
Links to Document from Site-Internal Pages – 4.15
Primary Subject Matter of Site – 4.00
External Links to Linking Pages – 3.92
Link Popularity of Site in Topical Community – 3.77
Global Link Popularity of Site – 3.69
Keyword Spamming – 3.69
Even though this is basically a survey, and results show the participants’ views, this is a great resource to go through before starting to optimize your sites.

{ 3 comments… read them below or add one }
Hi,
your list is good and like d it very much as i am doing optimization for my site http://www.ticketstousa.com.
Thank You
Amit Dobhal
Googd list for beginners.
Cheers
Andy Matthew
I was just surfing by, and I read this whole blog but I think this is the best article. Very useful info!