Viewing these side by side, I much prefer the depth and contrast of the old icon set. There is a bit too much "glossy" reflection to them, but if that were dialed back they'd be fine. IMHO, the biggest losers in a head-to-head comparison are:
Settings (changing prefs is like changing the tire on a Mercedes? Or clearing the leaves from off the top of your home's central air fan shroud?)
Game Center (bubbles?)
Camera (agree with previous poster--SLR silhouette?)
Photos ("Tonight on NBC--the Partridge Family! C'mon, get happy!")
Newsstand (what, only comic books?)
Also, aren't most of these icons still "skeuomorphic" in a sense, just flattened and simplified? If Safari is metaphorically a "compass", why can't it stlll look like one?
The old set are too shiny and gum-droppy, but just a diet of less reflection and drop shadow would be fine. Too-clever-by-a-half uber-minimalism with a neon/pastel color palette borrowed from Make-up Barbie eyeshadow choices? Keep it. Repeated viewing of it on a daily basis might necessitate testosterone replacement therapy for power users.
I'm not the kind of person who hates a new look for the sake of being new. I loved OSX compared to OS9, and pretty much all of the evolutions of of X since then have been welcome. This sucks.
I hate to say it, but maybe Ive should stick to aluminum and glass.