I'll be watching these answers with interest. I used Vienna for a long time, then switched to Google Reader by way of Gruml. Hard to believe it's been over a year, but I pretty much stopped using RSS the day Reader died. (My Firefox session still has a HN tab with the "Google Reader is dead" story.) I've mainly been reading Ars Technica and Hacker News ever since, occasionally slumming it on Daring Fireball when I get bored.