While it's a good idea to use keywords in your anchor text, in some places it's just not appropriate for simplicity sake (build sites for your visitors, not bots). On the homepage of one of my sites, I have links to that site's forums. The navigational link for it simply says "forums" but in the header I have the forum link with it's primary keyword term and dsecription. Would it be wise to put a nofollow on the "forums" navigational link to only have internal anchors with the keywords... or keep both links?
As far as my test results go about this, Google only pertains weight to the first link encountered (browsing top to bottom in the HTML). So a second link to the same identical URL would just be ignored. It would be wise to put a nofollow yes, IMHO
Can I explore further? Are you saying that you believe it would be good practice to use nofollow attribute on "Home" anchor links and then use "keyword" anchor further down in the page for site's HOME page? Our menu is across the top of the page on every page on our site. Since it wouldn't be appropriate to use keyword in the menu, we should use nofollow on "Home" and include keyword with URL for home page? Keyword is already on pages with links, just didn't realize that "home" link might have kept it from being read by SE's. Is this the general following? It does make a lot of sense now that you've got me to think about it. Google says there's a lot of competition for the word "Home" - 7,050,000,000 - Don't think I have a chance in * of kicking NASA out of that coveted spot.