The best replacement for buzz is woody.

The best alternatives to buzz are rated as following:
★★★★★  woody
★★★★  zurg
★★★  roc
★★  shave
★★  themer
★★  hype
★★  shave head
★★  bald
★★  buzz
★  zapp
★  bugaboo
★  nova launcher
★  not to buzz
★  fade
★  guzzle
★  moodd
★  zapp xtra
  s-files
  zurg toy story 2
  showbiz central
  icandy
  friendfeed
  renoise
  speedi
  google buzz
  digg
  crew cut
  bugaboo cameleon
  quinny zapp stroller

Your alternative for buzz is not listed? Suggest!
Speaking about buzz, one probably shouldn't forget about breaking.

Other search terms related to buzz and their ratings are:
★★★★★ breaking
You have in mind a companion for buzz and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of buzz in all years. Click on graph for more.
buzz
woody
zurg