emacs + elfeed
Reasons:
- I'm using emacs for almost everything, so it it is a quite obvious choice
- Links to rss/atom are stored in a plain human readable org-mode file that you can edit manually or use VCS on top
- It works fine from both terminal and gui
- It is a fully OSS solution under The Unlicense
True, but diversity and competition is always better than monopoly. I won't use it but I cannot say that it changes nothing.