Well the first thing I look for good anime and great music. It needs to have anime that matches the song. If the anime is fighting then I want to hear a good fight song. The same with the music. It has to make sense and explain the anime. Then after it catches my attention, I look for the meaning of the AMV. There has to be a purpose behind it. These are some of the questions I ask myself when I watch AMVs. What is the creator trying to say? Why did the creator use this song? To sum it up, good music, good anime, and purpose are what I look for in an AMV.