I thought they echoed the Rinspeed ZaZen themes a bit, or Rinspeed echoed these themes - the white and red (orange in Rinspeed's case) retro-futurism of sorts. Never mind. I second what Robert said about the Prada-and-latte set - and especially the females. They must have paid the male model a heck of a lot of money..
I prefer concepts to be more about near-future styling, as well as functional design. As with that Mazda, the instruments in the steering wheel is a nice idea; integrating everything there neatly. On the other hand, it removes them more from the line of sight than usual, so I'm not convinced. However, it must only be a matter of time like instruments are mainly on LCDs, like the W221 S-class's info screen in the instruments, or the Saab Aero-X concept.
Anyhow, I don't really have a favourite concept this year, really. Not that I can remember right now, at least.