There are worse things to be called than a pig. Pigs are intelligent and supremely useful creatures. There are many people, many of whom are men, who don't share those attributes.

One should note however, that when dealing with pigs, one should expect piglike behavior. Don't expect them to move aside and let the ladies be first to the trough.

In general I think that male humans behave in a more porcine manner. But since hogs are not prone to deceitful or cruel behavior, I believe that in the boar or sow, rather than a man or woman. The pig's greed and ill manners are much more honourable.