I installed an Eclipse CD-5030 a couple of months ago and really like the sound quality and the range of adjustability. It has no problem with most modern media file formats and Bluetooth works great as well. You can find them for about half the expected cost of the Pioneer.
However, there are two shortfalls that have me leaning toward buying the Pioneer DEH-80PRS after it comes out and the price goes down, and why I voted for the Pioneer in your survey.
First, I bought the Eclipse used and in very good condition and at a great pricepoint. However, the unit I bought did not have the MEI-100 microphone that is used for auto-EQ and auto time alignment. These mikes are very hard to find. Not all auto-EQ and auto-TA is well executed, but the quality of the Eclipse unit is such that I would like to see how well these function. If you do go with a CD-5030, be sure to get one with the mike and then let me borrow it for a week!
Second, the Eclipse has poor radio specs. FM sensitivity is a lousy 15 dBf. If you like to listen to FM or AM, especially to distant stations or you try to listen in urban environments where you need good multipath rejection, the Eclipse will not be for you. The Pioneer Supertuner IIID will have an 8 or 9dBf spec, the best available.
Either way you go you will have an excellent headunit, just take into account how you are going to use it!