I like Rumours, but I couldn't find room for it on this list. As for Dylan, obviously a lot of people feel he is over-rated. Yes, he certainly is one of the best songwriters, but many neglect to notice the musical innovations he created as well. He fused folk, rock, and blues into an earthy, gritty, and exciting alloy. As an aside, I'm still shocked when I hear people slam Dylan and find out, after further questioning them, that they really only know the more popular folky singles he created.
Some folks find it too grating, and that often becomes an obstacle they find impossible to get past.
He certainly has a horrible voice in any traditional sense, but he also has a unique quality to his voice that he managed to capitalize on. His words can sound as acidic and jarring as his most vicious songs, and as weary and intimate as his most personal tunes. He writes to his voice, and at least a good chunk of his genius is transforming what at first listen appears to be his Achilles' heel into his most devastating secret weapon. But hey, different strokes. Again, thanks for the comments and for taking the time to scan my lists.