Darunia for me.
Darunia was the only Goron character who was serious and cool. The Gorons in general were pretty goofy in Ocarina of Time. He was funny when he danced, but after that he was involved in some of the grittiest and more dire parts of the story. The Gorons were facing imminent death at the hands of Volvagia, and Darunia went to fight him. Him swearing brotherhood with Link made him awesome, and there was just a lot of things with Darunia I liked.
I actually would like them to expand the stories and scenes with the Sages (including Darunia) a bit more in OoT 3DS, because they were kind of shoved to the side pretty quickly.