Hey Ramesh,
I'm not 100% sure what you mean by "favourable to Google only".
Personally, this is one of my main keyword research tools for SEO purposes, especially now they give the actual search volume numbers as opposed to the little green bar they used to have.
One thing I always make sure to do is sort results using the [exact match] option - this gives you a much more accurate view of the actual search volume for specific keywords.
For PPC it's also useful to activate the "Avg CPC" option too - though this should be considered more of a guide. Your actual CPCs will vary depending on your account, ads, quality score etc.
Don't be put off just because a keyword has a high CPC. In my opinion, this just proves it's a profitable keyword to go after ... particularly with SEO :-)
Hope this helps,
Richard