Ok, here are my thoughts, since you seem to really want them. I base all this off personal experience in school and college, and to a certain extend the internet.
I see several divisions:
We have the very religious young people (largely Mormons in the west where I'm from) who are supportive of republicans and to a lesser extent the libertarian leaning conservatives like Rand and Massie. They despise most democrats. Most of them aren't very informed, but the ones that lean towards the libertarian side of things tend to be more informed.
Then there are the ultra liberal know it all socialists of this generation. Many are hardline democrats who love the gubbermint and worship everything they do, however there are also some more informed individuals who are still far left, but are skeptical of typical democrats, as well as obama. They'd probably be Kucinich supporters (if they knew about him, which I don't think many do.)
There are a decent amount (although less than some people think) of heavily libertarian Ron Paul supporters. Not the liberals who say "I like Ron Paul's foreign policy" or the conservatives who say "Ron Paul has some good ideas on the free market". We're talking about the real libertarians. They are very passionate and informed--typical RP supporters, if you ask me. I identify with this group a lot.
A very large group consists of what I call the "I hate politics" crowd. They're non-political people for the most part, although they do have a few opinions here and there from watching the Colbert Report, and maybe from their political friends. A lot of them are disillusioned with politics and prefer to just try and live their lives. They're generally of slightly above average intelligence. Ideologically they're either moderate liberals, or moderate libertarians with a few liberal leanings. I sympathize with this group as well.
Finally you have some of the more thoughtful and informed but less ideological "moderates" whose opinion on issues could be anywhere, although they're generally fairly liberal. They seem politically active but prefer to keep politics out of things.
As far as peoples' views on Ayn Rand, most young people who know about her either absolutely loathe her and her philosophy, as much as to wince at the sound of her name or her books. However there aren't that many people in my generation know about her. I've been trying to understand why people despise Atlas Shrugged (the book) although I haven't found anything other than "She just wants the rich to have everything. She thinks being selfish is the best thing ever" which is a misunderstanding. People in general seem to just assume that what she says is crazy, 'because everyone knows it is' and jump on the hate bandwagon.
My thoughts on Atlas Shrugged? I thought the movies were subpar but not as awful as people think..but the trailer for the third movie looks sketchy and doesn't quite capture the magnificence of the spirit and thesis of the book.
Any questions?