Zune! Let's see where to begin...
horrible proprietary software, I'm not saying iTunes is great but anyone who claims iTunes is a huge pile of steaming shit and likes Zune either is dumb or an Apple Hater. At least with my iPod I have CHOICES. Zune you have one choice. And you better hope the damn program installs without problems. I speak from experince, Zune software problems can be a NIGHTMARE.
iTunes, DRM or not has an awesome selection of mp3 and videos, tonight I bought a video for a buck and BOOM it's on my Touch. iTunes cover art is SWEET. I'm not sure where Zune gets it's art, but some of it looks downright horrible.
Zune has the single more retarded song rating system ever, it's like the people who designed it went out of their way to make it as fucking bad as possible. I mean a heart or a broken heart? What the fuck is this! I don't see how this made it out of the first stage of Zune beta testing. Somehow it's still around after how many updates? nobody likes this, and if somebody does there is no hope for them.
Zune has like 5 accessories you can buy for it, ok, maybe I'm bullshitting. I'm sure there are dozens, iPods have thousands and thousands.
Did I mention the Zune software sucks at least as badly as iTunes?
My GF has a Zune, she got the Shit Brown one off Woot for 99 bucks. The best thing about it is the headphones that come with it and pretty decent, better than my Touches that's for sure. It's not a bad unit overall, but having no option to sync besides the shitty Zune software is a huge negative to me. And honestly it does nothing better as a player over an iPod except maybe the fact you can create a playlist right on the device. But I think with the 2.2 firmware you can do that on the new iPods too right? I dunno I haven't tried on mine.
Every new car head unit will support iPod, with a Zune at best you'll get an RCA jack where you can connect it, but as DayLaPaul said it won't interface with the deck at all.
Fuck Apple's expensive computers, fuck their expensive LCD's, but my Touch is near perfection, and it can be hacked to do whatever, where Zune's will probably never get cracked.