Feedly seems to be doing the best out of the alternatives for performance in light of the deluge of Reader refugees (Newsblur, WTF?) -- but it is still very "sparse" in layout. I haven't figured out a way to get a simple listing of articles per feed like Reader does, which means it won't work for me.
I want something even more dense than Reader, or at least no worse. TheOldReader is close, but I would prefer something with iOS clients as well.
TT-RSS is looking like the best option (even though it has no apps), but I don't really want to have to host a PHP app.
Philosophically I love Feedly (YC company, startup, etc.), but I don't think they want to make some dense power user tool like a direct Reader replacement.