In a CMS its always a question how to build forms of our choice . definetly there is alternatives like wufo form and google forms but all thee are not as good as running in our own server. Here comes a much simple yet powerful plugin from codecanyon Quform (Previously known as iPhorm).
Form the admin we can create forms and these created forms can be embedd easily in pages
Demo / Download : http://codecanyon.net/item/quform-wordpress-form-builder/706149