I can only talk regarding what I've seen on their public appearances, twitter, blogs, interviews etc.
While I like Kaley ok, I don't like her interviews, she doesn't come up as smart, or interesting to me, laughs way too much, and overuses the phrase "it's fun". Also, at the last two Comic Cons, I'm sorry but she came out as a bit of an airhead. Not to mention her Playboy interview. I really don't know what she was thinking when she did that.
I also follow her on twitter, and 90% of her tweets are either about shoes, or going clubbing with friends, or reality shows. I'm sorry, but I don't find her interesting. She's very nice, and I bet she's a great person, but I don't find her attractive or interesting because of her public persona.
Mayim in the other hand,. you may or may not agree with her parenting, or beliefs or convictions, but there is no denying that she is a very smart, intelligent, read and articulate person, someone that I would really like to talk to and make an exchange of ideas. She's a very interesting woman, who can really express her ideas and can really handle a great conversation on a very large number of topics, someone who stands by what she believes in and can carry a good debate without resorting to agression or common places.
I read her blog, seen a lot of interviews (even from her blossom days) and seen her Commencement Speech at Penn State. And she has always seemed extremely smart and interesting. And I wouldn't say it is only because of her PhD.
Is true, is not necessary to have a PhD to prove someone is smart, but it is a sign of a certain intellectual curiosity and the pursue of knowledge,
But again, that is my opinion, based on their public personas.
Totally agree with your post Sursonica. I get more or less the same vibe from both of them as the one you described for each one.
I don't agree with everything Mayim says or does as her philosophy in life (and btw: her parenting or eating choices are that: choices, but everything derived from her religion is an enterely different matter: she didn't make up that stuff, to say that is "off-puting" could be even considered offensive for Jewish people, I'm not Jewish, but I'd surely be a little bit offended if someone says something like that of my culture or beliefs, just my opinion), but what I've read from here had surely touched me and made me think much more (the poem to her kids she posted weeks ago made me cry, and I'm not a mother yet and had never been the motherly type) than Kaley's tweets or interviews.
And I'm not trying to blast Kaley either, I'm convinced too she is a great girl in real life, and yes, I think she is beautiful, but she doesn't tickle my interest enough, I simply don't feel compatible with her.
It's also the way I'm usually attracted to people. Hot guys (even uber-hot ones) do nothing for me unless I find them interesting, specially at the intellectual level. My current boyfriend is not conventionally attractive at all, but he is extremely intelligent, talented and witty, we always have something to talk about. I can't but smile when people tell me"You could do better!" based solely in his looks. They have no idea
I think that could also be a very good analogy for those who say can't understand why Sheldon could be interested in Amy and not fall for Penny or any other hotter woman. She simply is way more interesting for him than any other gal, despite not being the "prettiest" of them all.