VLC VideoLan Client is one of the best and widely used media player in the world. It was very popular for windows and now its among the popular in android too.
Why VLC.? VLC designed was very simple minimal and very user friendly any type of user can use it. It can also the lots of feature.
You can watching movies, Listening music, recording sound, you can also editing a Video you can also trim videos, make ringtone, you have lots of feature if you use it.
I love this VLC Media Player because of ots simplicity and its usability you can play any formated video it almost support all kind of format you dont need to use another player for video and music. VLC is the all rounder it can be always on top of the list in media player.