In no particular order.
Sumomomo Momomo.
-I love this anime. It is very comedic and always makes me laugh out loud, especially at Momoko's failed attempts to make Koushi-dono love her. I'm on the verge of finishing this anime, so I can't say anything about the ending, but this anime keeps me on my seat. I love the loli personality of both Momoko and Iroha, and Koushi's way of 'fighting' is awesome too x3. There is lots of martial arts in this anime, and it is based on the 12 zodiacs, and the attacks are very unique. And the opening is the best "Let's engage in child production~!"
Darker Than Black.
-One of my favorite animes that came out in spring. It has an angsty feeling, and some people die, but it is very deep. All the arcs are two episodes and you see all new people in every two episodes, though I miss some of the old people. From what I've heard, it is a lot like Code Geass, though I don't know, since I've never watched it. My favorite character is Lee Shun Sheg/ Li Shun Sheng/Hei/BK201, kawaii. The plot is about well, in Japan, there is a fabricated sky and there are contractors, with special powers, though it's heard to explain. I definately recommend this anime to Code Geass lovers, and everyone else as well <3.
Rozen Maiden.
Oh my gawd. Best anime ever, this is one of my favorite animes ever. The plot is about these awesome dolls that are brought to life, to fight to be 'Alice' by taking their Rosa Mystica, so they use mediums for their power. Sakurada Jun, due to an incident in school, now refuses to go, he likes supernatural things, so he takes a survey, then finds a doll in the drawer, he winds it up and it is turned to life. This tells the story of their adventures, and the trauma between Shinku and Suigintou, another rozen maiden. My favorite character is da bestest in the whole whole wide wide world ~ Suiseiseki <3.
Higurashi No Naku Koro Ni.
It's very creepy. The plot is; every year, on the day of the Cotton-something festival, someone dies, and someone disappears. Strangely, the deaths are all connected to a new student tranferring, Keiichi-kun's, friends. The anime is super-super creepy, and the weak-hearted shouldn't watch this. But Rena is the creepiest, with the machete D=. There is lots and lots of blood and gore, and in every arc, at least one of the characters go paranoid, though, the anime is confusing. The creepiest arc was either the Meakashi arc, or the Watanagashi arc, because they involved the Sonozaki twins. And at the end of the Watanagashi arc, in episode eight, the ending at the hospital was VERY creepy. And the torture scared me D=. Especially the hammer and nails, and the taking off of the nails part D=. But it's one of my favorite animes <3. Rena is pretty kawaii too, expect when, ehhh heh, you know.
Gakuen Alice.
I've started reading the manga a long time ago, but I couldn't find the chapters anymore. Then, I started watching the anime. Get this, it's da plot; The Alice Academy is a special school with people with Alices, or special powers. Mikan Sakura's best friend, Imai Hotaru, transfers there, and Sakura was her, then she figures out she has an Alice of her own, while the Academy tries to fight off a rogue organization that wants to destroy the Academy. I love all the different Hotaru-inventions, especially the fly swatter, and I love Mikan Sakura's 'o.o' expression. And at the second episode, when Narumi-sensei whipped Natsume <3.
Lucky Star.
This is my other favorite spring anime, Luckjy Star. Most know the plot, but i'll say it; Konata Izumi is very athletic, though she hates sports, and whatever after. This tells the adventures of four girls, Kona-chan, Tsukasa-chan, Kagamii-chan, and Yuki-chan <3. This anime is super funny, and I love the character designs. And Lucky Channel is really funny too, I love Akira-sama, Oha-lucky ~ and Bye-Bee ~! [Run over'd] Lucky star doesn't really have a plot, but I really love this anime, and the opening song is sooooooo addicting, especially the dancey-prancey-schmancy part <3.
FLCL.
I really like this anime, and Haruko-chan. It's very funny, and I love when the horn grows on Naota, it's one of the shortest animes that I've seen. I love the graphics and all, and the animation is awesome as well, and Mamimi is great great great <3.