Not really, but the firmness of your belly makes a big difference. If you've got a taut belly that makes you look a bit pregnant, then the fat is mostly visceral fat around your internal organs. This is much worse for your health than jiggly subcutaneous fat just under the skin.
>>4963 I get that visceral fat is bad, but presumably that is just a stage along the way to having bellies like those blokes in the OP? Are you saying it's possible to have loads of the jiggly stuff and nothing visceral?
People accumulate fat differently depending on their genes. Some people mostly have subcutaneous fat, so they have a relatively low risk of obesity-related disease even if they're quite overweight. Conversely, some people with just "a bit of a gut" are at relatively high risk, because it's all visceral.
A waist size of over 37" means that you're at high risk of diabetes and coronary disease, even if you're not particularly fat elsewhere. The classic beer belly is a serious warning sign, even if you're relatively slim everywhere else.