Hope is the closest that any of the virtues comes to describing me. The only thing that keeps me going is hope that tomorrow something awesome will happen to me. Hope that someday my luck will change. Hope is the only thing getting me out of bed in the morning and the only thing stopping me from jumping in front of a bus.
Next up is probably faith. Although I have little faith in humanity as a whole, and absolutely none in religion, I am extremely loyal to the people I care about. However, I've never had an opportunity to display this loyalty so it's not really evident.
Third, temperance. Despite being a virtue, I think I have too much sometimes because I tend to under- or overcompensate in order to be moderate. In addition, this leads to indecision when there're no shades of grey in a situation. It can also lead to problems in video games in which I get to choose my own stat/ability progression, where I tend to gravitate toward a jack-of-all-trades, master-of-none type of character. This killed my experience in Dragon Age and other WRPGs.