Yes, there are many famous heroes in hell, but they will give you no enjoyment. Hell is total suffering and agony - unrelieved by any joy whatsoever. Yet they say that they aren't sure whether there is a hell. They live and act as if death ends everything. But their very use of such language shows that deep within them they feel that those who are wrong should be punished.
Goodness is gone if it tolerates badness.
To maintain His goodness, God must completely triumph over evil. There is a God. There is a heaven. There must also be a hell. God is a God of justice as well as love.