Who is the real quack here?

Who is the real quack here - Dr. Mehmet Oz with his impressive credentials or * "Doctor" Stephen Barret and his meager credentials who makes a living being a hack for mainstream medicine?

Dr. Mehmet Oz:

Oz was born in Cleveland, Ohio to Turkish Muslim parents Suna and Mustafa, who had immigrated from Konya, Turkey. He was educated at Tower Hill School in Wilmington, Delaware and in 1982 received his undergraduate degree from Harvard University. In 1986, he obtained a joint MD and MBA degree from the University of Pennsylvania School of Medicine and The Wharton School.

Oz is Professor of Cardiac Surgery at Columbia University. He previously directed the Heart Assist Device Program and is a founder of the Complementary Medicine Program at NewYork-Presbyterian Hospital. His research interests include heart replacement surgery, minimally invasive cardiac surgery, and healthcare policy. He has authored more than 400 original publications, book chapters, abstracts, and books and has received several patents. Oz serves as a scientific advisor to MDLinx, a leading physician portal.

Oz is the founder and chairman of HealthCorps, a non-profit organization that pays a small stipend to recent college graduates to spend two years in high schools mentoring students about health, nutrition, and fitness.

Stephen Barrett:

The most quoted source against alternative healing in the mainstream media, Barrett let his medical license expire and instead pursued making a living through his Quackwatch and other websites which attack alternative medicines.  Barrett also has received income from out of court settlements after numerous threats against his detractors as well as income from testifying as a psychiatric "expert" in court cases.

In a recent year court case Barrett lost, he was forced to make several revealing admissions:

1. He had ties to the AMA, Federal Trade Commission (FTC) and Food & Drug Administration (FDA).

2. Despite providing supposed expert testimony as a psychiatrist and testifying in numerous court cases, he was not a Medical Board Certified psychiatrist because he had failed the certification exam.

3. He has filed 40 defamation lawsuits against his detractors and not won a single case.