I've been a fan of OGG Vorbis against its major contenders being AAC and LAME mp3. It seems to be the best at bass quality for the bit rate and can impressively reduce file sizes without being slow at encoding. However I heard good things about Musepack and looked into it compared to AAC and Vorbis.
People seemed to like Musepack more in general. However, I realized that everything I was reading about it was quite old, even as far back as 2004. Musepack doesn't seem to have gained a lot of popularity or compatibility. Did it die or is it still being improved? Did AAC and Vorbis improve far past it? Or did very little change at all and its popularity and compatibility is being more affected by things other than its efficiency?
I've also heard that Opus surpasses Vorbis and AAC but don't hear as much about it as those two. Could it be a great CODEC but factors have prevented it from gaining popularity? Can anyone tell me if Musepack and Opus are good options to consider ahead of AAC and OGG Vorbis?