simple_crypt comparison

For those who can determine crackability: Recently a message was posted which included source for a chaos-based crypt routine. How does this compare to the one-rotor crypt routine which is found in /bin? I.e., Which one would be easier to crack, and why? I am still learning, so I apologize for the waste of bandwidth if it is intuitively obvious to you. Both source files are attached. Thanks. Buckley Collum