Skuld is a bratty, temperamental, annoying, and very insecure, but this is what, in my opinion, what makes her my favorite Goddess of the three, this little facts make her human (even if she's inmortal, lol) and a believable character.

Another fact that is important to her character, is that Skuld claims herself to be the guardian of Belldandy, and doesn't like when Belldandy gets too close to Keiichi, in my own opinion Skuld is only scared that Belldandy might forget about her, and just wants to keep Belldandy to herself.

She also has a angel, Noble Scarlet, but she is not able to control it very well, and so the angel goes back to its egg which Skuld uses as a pendant around her neck.

Most sites that I have seen online say that Skuld is an annoying character, but I love her to bits, mostly because she reminds me a LOT of how I can be sometimes, although I don't have Skuld's skills with math, most people see me as a intelligent but I see myself enough to know that I can get annoyed easilly and jealous. This facts make me feel a lot like Skuld, and even if I am not the youngest of my siblings (I'm the oldest) I know what's like to feel insecure like she does. Like said before she CLAIMS that she hates Urd, but she actually cares for her older sister, and was worried when Urd dissapeared, and when she finds out that Urd is half a demon and half Goddess she plainly says,

"Urd will always be my sister as far as I'm concern."

Skuld might not be perfect like Belldandy, but it's plainly because she is going through growing and learning how to deal with her feelings, she is at both ends...she either protects the persons she care about, or plainly doesn't show it. She is a Goddess....but she also has human characteristics...and even worse...she is trying to live through the years of adolescense, something that the other two Goddesses don't have to go through anymore.