Here is my response:
I have owned an iPod Shuffle and an iPod Nano both first generation. As soon as the Zune came out I started saving up for one and came to receive a 30 GB one for Christmas. I like the Zune so much more than any of the iPods I have ever played with or owned.
The only thing I would change about it, allow it to sync through Windows Media Player 11. I do not have a problem with the Zune software, but I do not like having to have two different programs for my music. One I prefer, and one I use only to sync.
What I couldn't live without on my Zune, well that comes in two features. Radio and Wireless sync. I use the radio daily when I am on campus to listen to Lex & Terry in the mornings. I use wireless sync much less but I predict that will change very soon with the fall update. Actually, scratch both of those features, the best feature about the Zune is the reverse sync. Where you can plug in ANY zune to your computer and take pictures, music, or video from the zune into the music library. Reformat your computer losing all of your music collection? No problem, plug the zune in and reverse sync to restore the library.
Obviously my preferred media player is Windows Media Player 11. I used to be an unconditional supporter of Winamp, until I WMP11 Beta was released. Then I fell in love with foobar, but eventually tired of having the ability to redesign the way the GUI looks. Give me a feature where I can change the way my favorite program looks (ignoring skinning), and I'll change it and change it till I can't change it anymore. So I switched back to WMP11 which I already loved the look of anyway. (Side note: another reason for switching back, near the end of my foobar life, I found myself styling foobar to look EXACTLY like wmp11 and then came to the realization of "why in the world am I trying to recreate the program when I could just use the program.")
My favorite thing about WMP11 is its way of displaying the library is just beautiful compared to many other media players.