Are you kidding me?!
Pros: Size, Construction, Price, Capacity (w/ card), Rockbox-able
Cons: Screen size, battery life (before Rockbox)
Pros: Size, Construction, Price, Capacity (w/ card), Rockbox-able
Cons: Screen size, battery life (before Rockbox)

Pros: Size, Construction, Features, Capacity, UI
Cons: Non-Rockbox-able, prone to scratches, HD can be laggy
Pros: Good capacity,
Cons: iTunes is an absolutely horrible program, laggy interface, noisy HD, bad equaliser, can't play flac, scratched far too easily,

Pros: Cool looks, no stupid interface for transferring files, amazing SQ for the price
Cons: Only accepts WAV as hi-res, long transfer time, too much power for my IEMs, long burn in process, the digital connections doesn't accept HQ cable.
“ Cowon J3 -- JoonBug's Review with pics! Official Cowon J3 JetAudio Product Page INTRODUCTION Let's face it, at the time of writing, the iPod has taken over the DAP (Digital Audio Player) market. Wherever one goes, one is bound to see someone with either an iPhone, iPod touch, iPod nano, iPod classic, or iPod shuffle. The characteristic white Apple earbud is more a fashion symbol than a...” --JoonBug
“ I got my player in January, but it has taken me a long long time to enjoy it. The burn in process is very long so you better let it play for at least one week prior to listening. My player was extremely siblant, but has settled over time. I even had to go back to the original cable. It was too painful to listen to. Still need more time to get rid of the last siblance. It probably has...” --Berno
“ i got this from a friend of mine for free becuase he had just gotten an iphone 4s (hes not an audiophile) so he gave me this. I was gratefull ofcourse and i decided to try it out instead of my sansa. the sansa wins easily, the ipod sounds meh, not very accurate and the bass is uneven/rumbly. i then traded this for an ipod 5.5 which i rockboxed later on and now i am happy. ” --Deki
“ Packaging Sansa Clip+ player. USB interconnect cable to charge via PC and to transfer data. CD installer for Rhapsody. Earbuds. Pros It supports a lot of formats, even lossless formats. Very simple interface, easy to understand. Very good music playback. Definitely better than players around and even above it's price...” --koolkat
“ I was looking for a new DAP a few months ago when my Cowon S9's power slider stopped working properly. I was considering the HiFiMan 601, HiFiMan 802, S:Flo2, and a few other DAPs. After fixing the power slider problem myself, I stopped looking for a DAP because I was content with my Cowon S9. Recently, I was browsing the forums and came across a promotion by...” --SolidVictory
“ I recently decided to take a bit of a chance and buy blind into a new DAP. Over time I've slowly become more and more tired of the mainstream Apple/Sony/insert company name here MP3 players on the market and their lack of audio capabilities. Nowadays my player of choice is the iPod Touch and although I very much like my iPod's UI interface I've gravitated towards using a mobile amp to bring...” --DigitalFreak
“I got these a month ago and it still amazes me. First of all, I have to say that burn in is very important, with the HDP-R10 at least. At the start, the sound is a bit muddy and it has a bit of hiss, but that is completely eliminated after about 300 hours. It is said to be superior to the DX100 which is why I purchased it instead of the DX100. The specs show that it is recommended for any...” --lin0003
“ I was given this as a Christmas present. It took ages until I got a peep out of it. Windows XP Service Pack 3 seems to act like rat poison on this. Utterly refuses to acknowledge the presence as an external drive. Sure you can trawl Google and get any amount of fixes (generally involving holding down button combinations or worse), but they didn't work for me at all. Download a new...” --David
“ Its a great phone and easy to use and its driven my headphones well so far! ” --Swimsonny
“ I purchased the 5.5gen black 80GB a few years back in the late spring of 2007. This has been one of the best electronic investments to date. My purchase was based on two key, determining factors. 1.) Storage Capacity: This thing had 80GB of storage, this was the biggest capacity of any portable music player available at the time, and still remains high on the list 2.)...” --Lucias_D