Which is better

1.js

// which is better?

function f() {
  // returns object.. takes some cpu to complete
}

// this one?
return f().one || f().two;

// that one?
var p = f();
return p.one || p.two;

// or that one?
return either(fc(), 'one', 'two');

function either() {
	var o = arguments[0];
	var p = Array.prototype.slice.call(arguments, 1);

	return p.reduce(function (p, c) {
		return o[p] || o[c];
	});
}

2.js

var titles = Object.keys(grouped).map(function (key) {
	return { name: 'BEST_OF_' + key.toUpperCase() + '_TITLE', content: either(_.first(grouped[key]), 'title', 'authorName') };
});

var descriptions = Object.keys(grouped).map(function (key) {
	return { name: 'BEST_OF_' + key.toUpperCase() + '_DESCRIPTION', content: _.first(grouped[key]).description };
});

3.js

function either() {
	var o = arguments[0];
	var p = Array.prototype.slice.call(arguments, 1);

	return p.reduce(function (p, c) {
		return o[p] || o[c];
	});
}