I think a world without religion would be a better place--but a world without faith/spirituality would be a much worse place.
Let me clarify. Religion is not the belief in God; religion is the structured rules, regulations, punishments, and hierarchies that MAN has created in the name of God. Religion is judgmental, discriminating, and a way to maintain power/control over the masses.
Faith/Spirituality is the belief in a higher power. The name of your God, is irrelevant, it is just the recognition that something greater is connecting all of us and is watching over us.
I think the world would be better off without religion because most of what we fight about is somehow tied to religion and what our religion tells us is right and which religion is best. If there was no religion, we'd eliminate all of these truly petty differences.
I think the world would be worse without faith/spirituality because to me, they are the essence of unconditional love. When you have faith/spirituality in your life you are more likely to extend love, kindness, forgiveness, and grace to others. It is easier to get through difficult times and situations because you believe you are loved and never alone. People with a strong spiritual background tend to be a lot happier and content with life than those who do not.
It's no surprise that faith/spirituality is heavily linked with the crown chakra; wisdom and divinity.
So for me; religion booo, faith/spirituality yay!