I use KMplayer
window media player
I use vlc.
I switch recently from Winamp to MusicBee mostly so I have all my music and audiobooks in the same player. Although I like the aesthetics of MB there is nothing really that can compare to WA for performance and customisation, I just wish they would update WA to make it look more modern.
potplayer
i use PLEX mainly
I've been using Windows Media Player since I got a PC on my hands.
Foobar hands down, you can customize it in anyway you want
iTunes and VLC were just enough for me. Sometimes foobar2000. Nowadays - Spotify