anyone????????????

You should find out how each tool determines competition if you're going to blindly follow it.

Ultimately, you should know how to do it manually so a 'rating' may mean more to you. Look at the top 10 results: Is the site optimized, are onsite and offsite links targeting the keyphrase? What kind of link resources do you have?

You should determine the difficulty for yourself with the other information they give you.

I'm sure they don't differ in the stats about the page PR's, domain age, and title tags.

Use those figures to determine the difficulty.
Don't use the random difficulty levels that the softwares spit out for a keyword.
They're rarely accurate.

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It's also best to just go into Google and take a close look at each ranking page in the top 10.

People say only looking at the top 10 results are what matters. But look all the way up to the 3rd page. If you see a bunch of emd's, and partial emd's like www,keywordinfo,com or www,keywordhq,com, you'll get an idea of how many other sites are currently working for that page 1 spot.

Google Keyword Tools competition is completely wrong for SEO. To be honest, I am not sure what it stands for. I didn't know that and it made a lot of my efforts go to trash for a while. I use Traffic Travis for competition and it has proven to me that it is almost accurate. You will get a feeling from their terms after a while. For example, relatively easy means it still needs a lot of work. Difficult means don't go for it unless you want to spend lots of time (1 year) and a lot of resources and get hundreds of High PR Contextual (Page PR) backlinks for it.
BTW, when you check the competition go for the top 10 and also checkmark in anchor and in title boxes...

All google Keyword Tool is given not wright volume but not wrong approx wright

As of i know google keyword tool is best. But now i am not using more ..

Each tool will give you different results. You should check them with more tools if you can. Also Google could help you to choose the best for you

You shouldn't trust any of these tools. None of them analyze anything worth a crap when it comes to competition.

For people mentioning the Google Keyword Tool, the competition it gives you ONLY has to do with the level of competition among AdWords advertisers. It has nothing to do with SEO.

As for Ultimate Crap Finder and Traffic Travis, if I am not mistaken, both base the competition on things like whether the keyword is in the title tags of sites on the first page, the number of backlinks a site has, and the number of sites found in the index when you perform the keyword search. Completely useless.

What you need to do is closely analyze the top 3 sites. That will tell you how competitive it is. Look at their internal link structure, content, and most importantly the backlinks. Number of backlinks is not all that important. The quality of the backlinks is.