Which is better; winning or everyone else losing?

Unique to Dubious Alliance is the 'one Player wins, or everyone loses' victory condition. Because Players are obligated to keep each other (barely) alive, you cant simply kill off your competition. So when you do amass the Prestige to command the tribe, you are quite proud to have best-ed your 'friends'. However, if you are the wounded Orc who sees victory is hopeless, you may be tempted to kill yourself off and end the game before a victor is crowned. Which is a more rewarding end; to win or to end the game and stop someone else from victory?