Favorite Vocaloid song?

I'm listing everything in order, starting with my absolute most favorite.

I'll start off my list with a fabulous fanmade song and video. This is actually part of a series of videos that are on crack. Believe it or not, this is a funny video:

 

This next one is the most gorgeous song I've ever heard:

 

This duet between the two newest vocaloids sounds so real. It's hard to believe it's generated from a computer:

 

This one makes me cry every time:

 

http://www.youtube.com/watch?v=egxSB...D2BFA&index=65

By contrast, this one makes me laugh every time. It's a classic:

 

http://www.youtube.com/watch?v=yaxJj...D2BFA&index=21

This song is addictive. A friend of mine and I are learning it for a convention:

 

http://www.youtube.com/watch?v=egxSB...D2BFA&index=65

Classic. This one got me into Vocaloids:

 

http://www.youtube.com/watch?v=vn-Ry...D2BFA&index=32

Miku kidnaps... Miku?

 

http://www.youtube.com/watch?v=SeccH...D2BFA&index=52

Len's a manwhore! What else is new?

 

http://www.youtube.com/watch?v=RnVV9...D2BFA&index=34

This one is a pun on natto and how sticky (neba neba) it is. Other than that, it rocks.

 

http://www.youtube.com/watch?v=KRj7s...2BFA&index=152

These three don't feature actual vocaloids, so I put them in a separate category. They're still totally worth listening to:

 

-- Uninstall http://www.youtube.com/watch?v=xOaHK...2BFA&index=105

 

http://www.youtube.com/watch?v=d-zW0...D2BFA&index=73

 

-- Under the Darkness: http://www.youtube.com/watch?v=aAoWg...D2BFA&index=74