My 10s:
Bloody Monday - great, intensive, you won't get bored even for a second.
City Hunter - as above, and the hero is just a superhero, like a perfect man, deadly but totally lovable.
First Kiss - Inue Mao was great, and her love interest was one of my favorite characters ever, I mean a really good guy, and a sensible one too (without the usual I love you but I can't be with you, so I will act as I hate you and make your life miserable- he knew what he wanted and sticked with it)
Hana Kimi Japan - watched several times, laughed hard, and Oguri Shun is one of my favorites. Probably everyone watched it, so everyone knows it's great.
Liar game 2 and Final Stage - something different and unexpected, I was a bit annoyed with the female lead in the first season so I didn't rate it that high. But she improved a lot.
Nodame Cantabile - I simply love it. Best one ever! Great story - it evolves so well, and it's not disappointing or annoying at any moment, you don't get bored and the ending is so well done (actually after the first cinematic movie while watching the trailer for the second one, I was so worried for 3 months about how is it going to end - but the second movie is so epic, totally amazing), great acting-main leads are amazing-both Tamaki Hiroshi and Ueno Juri are really good cast (an it's fun to watch how Tamaki's conducting skills evolved since the beginning of the drama- he really must have practiced a lot) all the supporting characters are so much fun , from dorky music students to overdone foreigners, it's a really hilarious. And the music of course- they actually created an orchestra of young musicians to record this, and the choice of pieces is also great.
Samurai High School- it should be called a Miura Haruma show, he's just to awesome in this, both in regular and Samurai mode.
Yume wo Kanaeru zo - love the main actress since Nodame, and I'm into life management techniques, so I really dig this show.
I think I should watch 49 days since so many people gave it 10.