Request form with workflow

I have to create a form / request for a client for new employees to request access on the network.  

1. The form to fill in, needs to be dynamic, loading questions related to his company and position.  
2. From there the submitted form needs to follow a normal workflow of approval and action on IT Department side.

Now I have 2 options:

Create an infopath form (but that would need coding to load related questions) and once completed it follows the normal workflow process

or

Make use of a Survey with branching.  (very cool feature I've discovered today :-) )  Then I automatically start a workflow once a survey is completed (Start wf automatically when new item is created - option)?

Which option would be best or can anyone suggest a better solution?