If you ask me, I'd say the festival of Dussera is a lot more important than Diwali which is celebrated twenty days after Dussera. On Dussehra, Lord Ram killed Ravan which signifies the core teaching of Ramayan - victory of good over evil. Diwali is the home coming of Lord Ram after the battle. Tell me, if your country wins a world cup, would you celebrate the day you won or the day the team came back home?