Thread revival :P
Anyway, as far as my ears can tell, the vanilla i9000 (that's the international version of the Galaxy S) still has the best SQ out of any mobile phone on the market, provided that it's been Voodoo modded. I realize that both the i9000 and the Nexus share the same Wolfson chip, but while the Nexus is limited to 16GB of internal memory, the i9000 gives you the option of slotting in a 32GB Micro SD card for a total of 48 GB memory. Actually, though, only around 13.4GB is available for your files, the remaining 2GB+ being exclusively for apps and the like.
The iPhone 4S reportedly has better SQ out of the box, but it doesn't natively support FLACs and WAVs. I realize that converting files is a minor thing, but it's still an advantage over the iPhone. My mom owns the 4S, but as she's a bit overprotective of it (
) I haven't gotten the opportunity to audition it using my reference files.
Not sure about the chip on the Galaxy Nexus, so as far as I know, it could house the same chip as its predecessor. If that's the case, then bar the abyssmal battery life (a 4.6in 720p screen is a bit of a drain), it's an excellent option. Then again, it follows the trend of not including a Micro SD card slot in the body, limiting the number of files you can store on it.
P.S.
In all honesty, the only reason I picked up on a dead thread like this is cuz things seem to be slowing down a bit on Head-Fi. Wonder what's up right now?