Quote Originally Posted by cherish
This may sound strange, but some people find an individual photogenic, while others don't.
I agree.

"Good looks" by itself is not only subjective across people, but also subjective across time / eras. For instance, many of us would find the actresses of the 60s looking pretty (and) dated what with their outdated dressing style and hair-style. They may not come across as "photogenic" today - even though at the peak of their careers they were outstandingly so.
Quote Originally Posted by cherish
And ofcourse, for one to determine if a person is photogenic: they should have had the chance to see that individual both in person and in photos, for comparison. I am speaking strictly about "visual appeal" in this case.
Yes, but in this case - the visually appealing person may not really be "photogenic" in the true sense. i.e As the individuals have met in person, the subject's "likeability" (or "charisma" as Guido put it) has influenced the opinion of the viewer making the judgement.

So, it is more likely that another viewer may disagree with the former's opinion.