Today, iM taking RssReader for a test drive. I've never used this one before and first impression is that it's one of the best. I really like the reading mode. I exported/imported my blogroll from Sharpreader. RssReader's import is rather painful, needs a little usability work. Reading in RssReader is painless, I can view all Unread items from the last 24 hours for all feeds in one HTML window. Finally!
Update: RssReader is good, but not great. I still like Sharpreader.