RVD, I agree with your assessment of Cal Undergrad, but grad school is QUITE different, especially the professional schools like Business and Law. At Cal undergrad, there is definitely a "survival" instinct that you need to have, and you never have that sense of "entitlement" that people from private schools have (which I actually don't like at all). Just because cal grads are "down to earth and grounded" does not equal "not good at networking and building connections." I understand that you may not have found any jobs through Cal grads or have helped any Cal grads find jobs, but everyone's situation is different. I've helped numerous cal engineering grads find jobs at my company, and pretty much formed a professional link between the company and the student org that I belonged to. Maybe it's different for engineering folks, who has a slightly more 'personalized' education than L&S (which I agree, has sh*tty support and you're left to fend for yourself. I had many L&S friends who had the same experience), but I can definitely see Cal grads I know helping each other out with jobs in the Silicon Valley and startups. Like you said, you are probably on one side of the coin and I'm on the other (50/50).
Now to business school, where the "public school" mentality is even more removed. I am quite certain that Haas, Anderson, Ross, and Darden did not get to their "top schools" status by providing services like a public school. Each school has their own endowment (Darden and Ross actually has *quite* a bit of money, rivaling some private schools), allowing them to do their own thing in terms of fellowships, grants, scholarships, hiring top staff and professors, etc... Just look at Ross, who's providing a lot of very good scholarships to their students and supporting them left and right in their job searches. At Haas, the staff is dedicated to helping students find the jobs of their dreams and build the skills they need to get those jobs. Just from talking to a few career center people and students, I already feel the support that they provide. I can only imagine what it's like when I'm a student there. Now with Haas and Anderson being able to charge more tuition to help with their endowment and program funds, I will only expect the support to increase.
Granted, most private schools will have programs such as KWEST, partner benefits, and other "perks" due to a larger endowment, but those are "fluff" reasons for choosing business schools and should not be seriously considered. I am well aware of the pitfalls of public schools (being a Cal grad myself) and would never pick a school if the support is equivalent of what the undergraduates receive. But fortunately for me, Haas (and other public b-schools) is not like that. The Haas alumni connection is VERY strong, if not stronger than most UEs (except for maybe Kellogg and Stanford). Every Haas alum I've spoken with (and the students who contacted them told me) have been super responsive and will help the current students out at the drop of a pin. Even CEO level Haas alums will respond to a Haas students' inquiry and plan a meeting with the student (happened to a couple students already). If that doesn't sound like the "private school" treatment to me, I don't know what will.
Anyway, I just wanted to say that I understand what you're saying about public vs private and I thank you for your 2 cents, but I don't think you fully understand the support that Public business schools alums provide to the students (maybe because you were looking into EMBA programs, which is a different beast altogether and I know nothing about). It's not even comparable to the undergrad experience.
Though I have heard that the BC EMBA program people are treated like royalty (since EMBAs are the cash cows of b-schools) just like the Wharton West program. Oh yeah, and BTW, I have a friend currently in Wharton West (just got in last year), so you may bump into him sometime if the different classes mingle.
One more thing, I don't have just Haas grad and Cal Undergrad on my resume, I do have that "other" private school's network to leverage from too.
GO BEARS!