The best replacement for potplayer is vlc.

The best alternatives to potplayer are rated as following:
★★★★★  vlc
★★★★  kmplayer
★★★  mpc-hc
★★★  gom player
★★  gom
★★  vlc media player
★★  media player classic
★  powerdvd
★  splash pro
  zoom player

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

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



Google Trends

Scale is based on the average worldwide traffic of potplayer in all years. Click on graph for more.
potplayer
vlc
kmplayer