Metroid Music

I'm pretty sure a lot of people here have listen to any piece of Metroid Music. So... the question is... what's your most preferred composition?

Well.. The Super Metroid Theme piece was great. I couldn't get it out of my head for a while. Metroid Prime 3: Corruption Title is also well made. The chorus gives a natural feel and stuff. My 3rd favorite is a certain Boss theme in MP3C. (Title would be a spoiler)