Some people have this insane idea that either Rob or Kristen is not worthy of the other. I have seen a few Kristen fans with this attitude but for the most part, it's female fans of Rob who are relentlessly hateful towards Kristen. The reason this is more prevalent among the Rob only fans is because men don't "fanboy" the same way women (or young girls) "fangirl"
During the Jimmy Kimmel Twilight special in June, a girl asked Kristen if she has similar experiences to what Rob and Taylor deal with in the fandom. Her response was clearly no. Ashley Greene reinforced this when she said "nobody is here to see me" while pointing to the audience, which was the typical Twilight gathering of 90% women.
Rob gets the screamers. Screamers are not the problem, but I mention them because it emphasizes the intensity of some fans of Rob.
There are healthy levels of fandom. Most of the healthy fans like seeing Rob and Kristen together and wish good upon them both. And there is the extremism, which leads to hatred
Oprah compared this fangirling to Beetlemania. She was referring to the Twilight fandom in general. But I think 90% of the screamers who camp out are doing it for Rob or Taylor. The screaming is symbolic of the degree of obsession. Older female fans aren't screaming but they may be more obsessed.
Men don't go overtly nuts over a female celebrity. Teen age guys may have posters on the wall, but it's of many different women. Rob has millions of female fans exclusively devoted to him.
To be fair Kristen has many devoted fans as well, and most are women. However, it's not the same as the obsession for Rob. For hetero women, they think she is the coolest chic ever. Plus, everyone appreciates female beauty, not just men and lesbians.
Men will buy a magazine like FHM to see Megan Fox, for example, in a thong. It's temporary and mostly physical. We don't think about who she is dating nor do we obsess. Kristen could do FHM if she wanted to --- maybe she has. The magazine has a new set of girls every month and our pattern is to see
as many different ones as possible.
As Chris Weitz said about Rob in the Time magazine of the 100 most influential people, "Rob is what women want." There is rarely one woman who holds that position.
My assertion is that Kristen is very much Rob's equal. But men don't camp out and scream. If we behaved like women, then we would be screaming and holding "marry me Kristen" signs.
She is the whole package. Most men have not really paid attention to Kristen. Some of us are not attracted to strong personalities like hers. My opinion is that those of us who have paid attention to Kristen (and if we are unattached or happen to be Rob) then there is not a more attractive choice than Kristen. For those that only look at physical appearance --- she completely satisfies that aspect as well.
To say Rob could do better is one of the stupidest ideas I have ever heard.
For the women who have deluded themselves into the idea that Kristen got Rob because of luck, or you don't understand how she has him when he could choose between so many ---- Stop it. He got the best one available to him. And he had to pine for a while until she became available.