K-ON is 14 episodes (slice of life, comedy)
Hey man, can you drop a lil info regarding each of the above anime, it'll be easy for me to choose that way.
Sure
Sakurasou no Pet na Kanojo - A romcom between a genius girl and a normal boy. What I loved most is the almost perfect description of emotions and feelings in the anime. (Slice of Life, Just so you know, Fanservice is there)
Tonari no Kaibatsu - Again a romcom between a deliquent (genius) boy and a serious studious girl. I liked the story
K-ON - Musical Comedy, one of the more popular anime, do I need to say more about K-ON?
Usagi Drops - Another must watch, this takes realism in anime to a whole new level. Tells the story of a child who has no one to look after her, how she gradually gets accepted into the family. The expressions, the portrayal of feelings, the BGM all are perfect. Just don't follow the manga. You will be disappointed
Another - Horror, suspense, but all in all a good watch (You may not understand anything during the first few episodes but keep going and the pieces will come together)
I'm still watching Bakemonogatari, and have not yet started Magi, if anyone has, how is it?