If you are looking really for best and easy to use SEO plugin for your wordpress website. Then it boils down to Squirrly WordPress SEO plugin only. Here is great offer on squirrly plugin. It helps you research your keyword on the page itself and helps you to improve the on-page meta tags and Keywords with ease.
It will keep making your page optimized by analysing the rank of your page. You can also link your analytics account with this. So that you can get the traffic and visibility of your web page against the keywords.
You can enjoy 35% discount on squirrly SEO plugin can be used for 5 wordpress sites simultaneously and really have impressive feedback from SEO people, who wants to give On page SEO a fillip.
If you are beginner then its great tool. You just need to plug your keywords and rest it will help you making all area green on the extreme right side of wordpress post or page.
If i have to review this seo plugin in one word then it is to earn 4 star out of 5 stars. You need not know to insert Facebook opengraph (og) and twitter card codes and do some coding inserstion in to header of your websites. This tools itself does. You simply have to provide your facebook admin account to verify and your twitter accountExplore Squirrly