I have been using Windows Live Writer for a while now as my blog editor and I am really impressed. I had been using two different editors, depending upon if I had a picture to post or not. One of the major issues I have with my current template is the width of images I plan on posting. If the image is too wide, then it really throws off the look of the blog. A couple of the huge selling points or WLW for blogging is the fact the client presents the entry during writing in a WYSIWYG format, including the width and CSS formatting of my blog. This way I am able to see how it is going to look exactly, prior to publishing. This is a huge bonus.
While the image is scaled down, here is what I see while I am authoring posts:
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