In terms of debate and arguments id say I'm actually pretty gracious in losing, during i'm inwardly focused and somewhat emotionally invested. I really value sound reasoning and intelligence, so in the event of a loss I'm actually somewhat happy because I learned something new and also figured out some weaknesses of my own.
In the physical realm though, I'm probably the worst loser (all is fair in love and war right?) but it's usually a short intense anger that again is directed more inwardly. I think that it's sort of a Jon Mccenroe type drive that is expressed more positively externally but maybe just as negative internally.