Writing JSON is also easier by hand than XML, or at-least it is for me. Any time I'm planning a data structure I always use JSON since it's so well structured.

Writing JSON is also easier by hand than XML, or at-least it is for me. Any time I'm planning a data structure I always use JSON since it's so well structured. XML is quite loose, unless I use plist theres no data types which is both an advantage and a disadvantage.