Kaoru Nagisa, because he's rather wise, smart and witty. A little anecdote: I did a little 'test' on an rather large eva site, which character is your role model. On a top10 list, my first accord was Pen-Pen. Hehe, maybe for I'm always chillin' ^^.
But my number 2 was Kaoru. But I thought of that before (but not of Pen-Pen, that sure gave me a good laugh
You can check out the chara test here:
http://nerv.nervarchiv.com/char_test.html - but it's german

... but you could run it thru babelfish though.
And Ashi Taka from Princess Mononoke, because he's brave, he can cope with life, and stands in for the things that he believes and for the people he loves / trusts in. And he's got sympathy.
Peace & Respect
-- Aetherfukz