Facebook likes for a blog - are posts or root domain more important?

[AISFM]

I've just added the facebook plugin for my wordpress blog. I've activated the like buttons on each post and I share the posts on facebook - so when someone likes it on facebook, it reflects on the blog post.

In my blog sidebar I've added the Like widget. I can either put the URL for it as my blog root domain (not many likes yet) or my facebook page (lots of likes, so more impressive)

I've been hearing about Likes etc counting towards SEO, so I'm wondering if anyone can tell me whether developing Likes for my blog root domain will have any significant benefit over the Likes I am getting for the individual posts?

[SunitaBiddu]

I'd prefer likes on specific post I'd share. Note that each inner page/post authority is counted when an overall domain authority is questioned. Additionally, mentions, shares and comments matters more than just likes. If your content is great, it'd be more fruitful if more and more people share the post.

[Audiohype]

Sunita is right on this one. There's more benefits from getting likes to a variety of pages rather than the homepage.