I want to know which is your favorite keyword research tool you use that provides the best results and analysis.
- **Add if I am missing some*
I usually use wordtracker, google adwords selector and overture.
I use many different thing but googles ad word is what I mostly use.
With all due respect that should be plural not singular, i.e., keyword research tools. You should never rely on just one keyword tool to do the job but rather you should use several keyword tools and then compare and compile the data. It also helps to chart all your data visually like in a spreadsheet so that you can easily figure out when all your keyword tools are showing good results for a specific keyword (optimal), or just some (not bad) or just one (risky). There's nothing like spending a lot of time optimizing a web page around one or more keywords and then waiting to rank for those pages and then a month, two months, six months later finally getting in the #1 spot in Google and then being shocked to find you're only getting a trickle of traffic (and not the eleventy billion hits a day your 'favorite' keyword tool said you'd get).
My favorite keyword tools are:
Google Adwords Keyword Tool
...and the Google search engine itself. Some advanced searches like allintitle can give you some really valuable insight into the competition.
google adword keywords tool is a good choice,you will benefit form them.
Google Adwords Keyword Tool is the one I have used for a while. specially if you have a site which has adsense text ads on it. Its nice tool to check keyword bid prices and trends.