He gives up his dreams and his future for his daughter and yet hes one of the most uplifting characters in the series and a clear support for Tomoya and Nagisa. he defines an honourable man.
Hm, the two that come to mind are Kenshiro from Hokuto no Ken and Jin from Samurai Champloo
Reason being is that they both define the kind of man I aspire to be: Strong in body, mind and spirit, learned, capable, kind, self-sacrificing, helpful and many other traits.