dickbaker - 2:50 pm on May 19, 2010 (gmt 0)
I don't trust the rankings shown in WMT any more than I trust the number of links or other data.
I've checked various datacenters and I don't see my keywords or phrases ranking as low as WMT indicates they can be. For example, WMT may show the CTR for a phrase in the #2, #8 or page 2 spots, but the phrase is always in the top five across all the datacenters.
On the flip side, WMT will show a great ranking for a keyword or phrase that's never ranked well no matter which datacenter I've used.