SEO Wordpress Plugin by Mervin Praison is a Powerfull Plugin which has many SEO Features. Google Authorship and Google Analytics Integration.

eSageIT SEO is simple SEO plugin to add custom title, meta Keywords and meta description to post and pages, .

With the Opti Seo you can Override titles, descriptions and keywords with page/post level input.

If you want to have better WordPress SEO and a fully optimized WordPress Website then you must use the Premium SEO Pack Plugin!