A person's life is a long time to live. In this lifetime people will try to convey things they feel through a flawed method of communication called speech. The people still weren't satisfied by launguage so poetry was born. Poetry evolved and is used in many different forms in the manifestation of our consciousness.
I guess the real question is what is everyones favorite band or favorite song of all time...hard question, perhaps the hardest.
No way in the world can I do that. How about 10 bands and a hundred songs?