The best replacement for emule is edonkey.

The best alternatives to emule are rated as following:
★★★★★  edonkey
★★★★★  limewire
★★★★  emule plus
★★★  ares
★★★  shareaza
★★  bittorrent
★★  frostwire
★★  amule
★  kazaa
★  vuze
★  utorrent
★  torrent
★  bt
★  soulseek
  easymule
  azureus
  bearshare
  dc++
  emule
  overnet
  lphant
  adunanza
  imesh
  dreamule
  torrents
  lime wire

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

Other search terms related to emule and their ratings are:
★★★★★ tor
i2p
kad
You have in mind a companion for emule and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of emule in all years. Click on graph for more.
emule
edonkey
limewire