In which way superior? The file transfer to/from Android uses the native OS interface ( Linux, Windows, etc ) and users are accustomed to this, no need to learn a second interface a la iTunes.
While a Chrome extension is not such a bad idea, is rather unnecessary.
I find iTunes to be very useful. One place to manage all of the content on my device, back it up, and restore it (if necessary). Android file transfer is buggy and exposes too much to the user. While it is cool to look inside of DCIM or wdh_update, it isn't helpful or even understood.
android leverages MTP standards and in a lot of cases emulates USB media storage. On Windows, Linux and OSX - this has resulted in a drag and drop interface for Android.
Samsung devices don't have the proper drivers on Mac for transferring files with Finder. I'm stuck using the Android File Transfer or the Samsung proprietary app, both of which suck.
You can get Servers Ultimate and just set your phone up as an FTP server or some other file transfer server.
Droid NAS also works brilliantly on Android devices and Macs. On Macs they'll just show up on your local network as a network drive you can drag and drop files to in finder. You just need to have your phone on the same wifi as your computer.
