E.S.
Give a thanks to your Dad for being a hero!
As for the fictional heroes? Every character is so unique. Lou is my all-time favorite. Loathed Sheila at first but in the last season she kind of grew on me. Could have done without some story lines like the woman from ER (forgot her character's name) though I know she has cancer in real life and wanted to portray that in her character.
Anyway, I think the show has run its course and will have a major, surprise Gavinesque ending!