Is there such a thing ?  Certainly the perfect headshot is different for each subject. 

Are you an executive?  Are you an artist?  Perhaps you organize children's parties.  The Perfect Headshot for each genres will likely be quite different. 

The Perfect Headshot is a custom headshot produced in collaboration between you and your photographer.  Choose a photographer who is interested in your business and how the image(s) will be used in your marketing materials.  Discuss your clothing options, background colors, and poses that will best portray your vision. 

The classic headshot has overall even lighting across your features. This is important for companies that want a consistent look to the headshots that are posted on-line or in an annual report.  If your headshot is to be used along side other employees, do you need the same background color?  Do you need a similar pose?

The artistic headshot steps outside the traditional classic headshot using lighting, color and posing to produce something more unique.  Perhaps you want something more dramatic with shading on one side of your face.  Or, something feisty with colored lights or background? 

The Perfect Headshot is the headshot that works best for you.  Set yourself up for success by carefully choosing the clothing and accessories you will wear.  Think through all the ways you will use the image(s).  And most of all, talk with your photographer about your vision !