✔ 最佳答案
Superman in my opinion would be older and live longer. For instance, Superman in interplanetary and can seem to age "according to the series" but does not have a life expectancy. His powers generate from within as a "magic" type occurance.
However, Batman is a human being that is dressed up with no real magi type power. His powers and abilities are all from gadgets that are created.
That being said... as there ages are never listed. I would say Superman would be older.