Yes, both will work and are quite similar.In the Activiti Designer you'll have a drop down with predefined form keys that you can use for the alfresco start event.
With the normal start event you would need to type the form key yourself. That's actually the main difference. For Alfresco workflows I would advise to always use the Alfresco start event.
Joined: Oct 03, 2012
Ok got the point. I always use to use alfrescostartEvent for all alfresco event.