I wrote a piece about Instapaper vs Readability, but it's over on my threads site, so you can comment on it using Disqus. It's the kind of piece people should be able to comment on, imho.
My feeds situation is a mess. I have this feed, and one for my worknotes, and one for my linkblog, and one for the podcast I do with Adam, and over time I'm sure there will be others.
That's the curse of working at the leading edge (I hope). Things rarely fit into neat little compartments.