Do you think if a website’s Code is WC3 validated code it will get higher priority or advantage from all competitor who don’t have WC3 validated code. Please give me your feedback.
W3C validate websites are partially effects on your ranking factor in some conditions not majorly its effect on your website ranking.
For more on it check this video http://www.youtube.com/watch?v=moDRehiE2ME
W3c validation helps you to make your website more search engine friendly and free of errors and warnings.It has very little affect in SEO....not too much