If you could arbitrarily pick any character, both are as good as each other. However '\' is currently an escaping character in nearly every program that needs s

If you could arbitrarily pick any character, both are as good as each other. However '\' is currently an escaping character in nearly every program that needs such a function, so as things currently are, '/' is better. This begs the question of when '\' as an escape character became mainstream though.