Several months ago I switched from Bloglines to Google Reader. I really like the button that Google gives you to put on a menu bar that allows you to surf thorough a folder of feeds quickly, instead of going to the reader. I like being able to read the latest posts inside of the actual blog instead of in a reader.  I still use Bloglines to organize OPML files, however. I wish Google Reader allowed you to make and edit OPML files of sub-lists or even folders within the entire list.  I probably spend 45 minutes - 2 hours a night reading this way.