Obese how? if they look fat? then its down to personal opinion.
If you are talking about the BMI index, then its flawed beyond belief. I am morbidly obese at 17 stone. But I am 6 foot 9, which makes any results utterly pointless. Look up the BMI if you wish, anyone with a brain knows its hogwash, or more precisely, a way for food company and interest groups to categorise large sections of the population as ill, thus they can be awarded money to help combat this "problem".