The newer versions of ColdFusion (I believe CF 8 and 9) allow you to create structs with object literal notation similar to JSON.

My question is, are there specific benefits (execution efficiency maybe) to using object literal notation over individual assignments for data that is essentially static?

For example:

With individual assignments you would do something like this:

var user = {};
user.Fname = "MyFirstnam";
user.Lname = "MyLastName";
user.titles = [];
ArrayAppend(user.titles,'Mr');
ArrayAppend(user.titles,'Dr.');

Whereas with object literals you would do something like.

var user = {Fname = "MyFirstnam",
            Lname = "MyLastName",
            titles = ['Mr','Dr']};

Now this limited example is admittedly simple, but if titles was an array of structures (Say an array of addresses), the literal notation becomes awkward to work with.