ClarkFinancial
Truth be told the first place to begin any
SEO campaign is by examining the server. What other sites are they hosting, will any of the other sites hosted create a problem for your domain?
Validation means nothing or next to nothing.
In bound links can make a difference depending upon where they come from.
A domain's lack of age can easily be overcome with some very simple tactics.
Don't chase the algorithms or you will be constantly editing your site(s).
As far as what is more important in terms of
SEO - just use all of the tactics that are permitted within the search engine guidelines and you will be fine.