Been into many forms of female competition for decades. Not all women or men are the same and women are much more than a pair of boobs. With that politically correct acknowledgement out of the way, as a man who has had and shared the fantasy and reality of this topic and all styles of female competition with every significant other I have ever known the feedback I have gotten has been this: Men like boobs. Women know men like boobs. Women like boobs and I believe if they are honest they will admit that it is one of the first things they notice about other women, just like men do. Boobs are a source of pride for women, for many a part of their identity, an for those more well endowed perhaps a little more so because most have had to deal with men and women about them through the years...in general I have noticed, that even with all the eye rolling more well endowed women have a better sense of humor about them whether they appreciate the attention they get because of them or not. A woman can walk in the room (more true for well endowed women) and their boobs speak for themselves. Men notice, women notice and may or may not make assumptions about her without even knowing her just because she is in the room. The old saying a woman's breasts usually enter the room before she does can be so true. An ugly truth, but I think if both men and women are honest they help form a first impression, kind of like a box being checked off mentally and filed away. I agree breast attacks are common because they become available during the natural course of melee and depending on how little or well the women know each other and the level of animosity, they know what she knows, breasts are a source of identity and pride and a way to physically and mentally leave her mark on her rival win or lose. So along with anything else a successful breast attack offers some degree of personal satisfaction because both women know that is hitting her where it hurts one way or the other. Of course my experiences are limited to the women I have known and those they have fought but each has admitted to one or more of the elements above as part of breast attack tactics.