I've stated this in another thread but I might as well repeat it:
Monkey D. Luffy - Young man with huge dreams and follows them to the ends of the earth (literally). Cares more about his friends and family more than he ever has done so for himself and shows no remorse for those that come between his and/or his Nakama's dreams and well-being. A strong child at heart, and while he's considered an idiot by some, he's smarter than one would think and his idiotic tedencies come from the fact that he's so care-free about life and never thinks about things much. He's very quick to accept and befriend someone despite their faults, and is willing to forgive others wanting to atone for themselves. Finally, he's a VERY capable fighter using his unique ability to stretch like rubber and comes up with many ways to utilize this ability.
You could say he's my fictional idol when it comes to his personality. =)
Since we're entitled to videos showcasing badass-ness I'll just put this here: