The best replacement for google reader is feedly.

The best alternatives to google reader are rated as following:
★★★★★  feedly
★★★★★  pulse
★★★★★  greader
★★★★  bloglines
★★★★  netvibes
★★★★  flipboard
★★★  bloglovin
★★★  netnewswire
★★★  instapaper
★★★  thy news
★★★  newsrob
★★  feedburner
★★  igoogle
★  reeder
★  my yahoo
  google news

Your alternative for google reader is not listed? Suggest!
Speaking about google reader, one probably shouldn't forget about flipboard.

Other search terms related to google reader and their ratings are:
★★★★★ flipboard
★★ rss
★★ feedly
You have in mind a companion for google reader and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of google reader in all years. Click on graph for more.
google reader
feedly
pulse