I have two heroes: Captain James T. Kirk and Captain Jean-Luc Picard. Why, you may ask, at 37 years old (almost 38) am I still looking up to two larger-than-life fictional characters? Silly though it may be, here goes:
Captain Kirk is bold, fearless, and in charge. He is creative in his problem-solving. He keeps going when everyone else would just give up and die. As Bones said in ST:IV, Kirk "turns death into a fighting chance at life." He just won't take no for an answer. When the crew asked why, he would ask, "Why not?"
Captain Picard has many of the same qualities as Kirk, yet he is also compassionate, cultured, and down-to-earth. He speaks with authority and can convince you to do anything, and yet you don't mind because his tone is gentle. He is diplomatic and can diffuse even the toughest of situations by talking and reasoning.
Put the two together, and you have a character combination worth striving for.