Shujin! I'm planning to become a writer in the future and his stories are the greatest inspirations!
Anisawa Meito! Better known as Anime Tenchou. If people had his enthusiasm, the world would be a much better place. And a lot more fun!
Colbert-sensei! I mean...
Spoiler (highlight to view)
He died so that the person who wanted to kill him wouldn't become a murderer! If it's not admirable, nothing is. And no, I don't give a damn about the third season revelation.
Okazaki Naoyuki... Fathers are my weakness. I just can't help liking a character who proves himself to be an admirable father. For me it's a man's ultimate goal - to raise a child he could be really proud of. Notice, how it's not until ~After Story~ that we get to see him as a parent giving his all.
Kurosaki Sayoko! Okay, now I'm being weird, ain't I? But, useless as she is, Sayoko's really a mother to be admired... I'm not going to spoil anything, but Kurosaki arc moves me deeply no matter how many times I watch/read it.
On a side note - she's hilarious.