The best replacement for itunes is windows media player.

The best alternatives to itunes are rated as following:
★★★★★  windows media player
★★★★  zune
★★★★  amazon
★★★★  rhapsody
★★★  winamp
★★★  napster
★★★  songbird
★★  vlc
★★  floola
★★  copytrans manager
★★  foobar2000
★★  sharepod
★★  amarok
★★  amazon mp3
★★  spotify
★★  google play
★★  mp3
★★  icloud
★★  cd
★  netflix
★  vudu
★  blu ray
★  media player
★  google music
★  musicmatch
★  ultraviolet
★  wmp
★  amazon and sound quality
★  app store
★  pandora
  google play music
  amazon movies
  mediamonkey
  cd quality
  amazon on demand
  media monkey
  plex
  amazon video on demand
  amazon video
  emusic
  limewire
  amazon mp3 sound quality
  icloud backup
  amazon unbox
  zune marketplace
  foobar
  itunes plus
  yahoo music
  windows media
  amazon instant video
  anapod
  cds

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

Other search terms related to itunes and their ratings are:
★★★★★ quicktime
★★ ipod
★★ android
★ chromecast
★ multiple ipods
★ paypal
★ windows 8.1
★ samsung galaxy s4
★ other mp3 players
★ itunes
★ windows 8
★ icloud
★ sonos
★ downloading
★ droid
★ quicktime download
★ account
★ credit card info
★ zune
★ drm
any mp3 player
new computer
losing music
apple id
windows phone
iphone
safari
multiple accounts
bonjour
no credit card
apple tv
download
nas
two ipods
erasing
an ipod
windows me
mp3 player
2 ipods
installing
2 iphones
You have in mind a companion for itunes and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of itunes in all years. Click on graph for more.
itunes
windows media player
zune