You might want to see Uncle Tom's journal on Trailjournals.com. He is currently near Washington State on his thru. He writes very well and you could get an idea about most of the trail and its conditions. He is using a tent, since there are many zones where there are no trees for hanging as you already thought about. Most likely areas would be in northern CA, Oregon and Washington, based on his journal so far.
Also, he a did a thru on the AT in '07, so he has a lot of experience and his judgment is pretty good. You might shoot him an email thru the trailjournals site and see what he thinks for hanging areas and views. Hope this helps.
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