Top rin and len songs

Rin and len are my favorite vocaloid characters. Their voice is taken from the same person and it surprises me even now. Well, len's voice isn't that manly but then again, it's good to be neutral rather than call him as a shota. Anyway, what are your top 5 kagamine rin and len songs? They could be featuring just one character or both the characters but they must be limited only to these two characters.

My favorite 5 rin and len songs are:

1. Servant of evil
2. Regret message
3. Lost one's weeping
4. Soleil
5. Snowman

What about you guys?

Rins favorite of mine is the Garden of Hands or something like that, where she collects peoples hands and plants them. It's scary but I really like the music for some reason :S