My goal is to use the RSS reader as a one stop app for all my news reading/searching etc. I've tried a number of them - web based such as Feedly, and desktop like RssOwl, FeedDemon, and none seem to meet my needs. This is what I want -
1. offline support. Download all the feed content, including comments, images etc, so it can be viewed anytime. I want the app to act as a cache of the blog, essentially.
2. syncing - whether it is via Google Reader, or their own service. So things like unread, favorites, saved searches/filters can sync
3. Portable mode if possible
4. Support for comments to be seen inside the app
#1 seems like the hardest to do. Some of the apps have an offline mode but it seems to act like a web browser cache, i.e if I need to reinstall the app, then its lost. There are a lot of important blogs, and my goal is to keep their content available to me by saving it, and also use the reader as a way to manage them, search, filter etc.