(Updated OP with new results, and adjustments in light of firmware 1.7 features. I'm still counting in the thread, but PLEASE read the rules in the OP, it will make it easier for me, and more likely that your votes get counted as you intended.)
Results as of post 389:
(
Firmware 1.7 just came out, so I have struck out Expanded support for Sharing, Disabled HDCP, and Option to Dim DS4 Lightbar as these have now been fulfilled.)
Suspend/Resume from Standby
127
Media playback of files (via USB/HDD, JPEG/MPEG container support; would include Custom Soundtracks here as games already support it)
98
UI customization options (background color/image, display preferences)
80
Custom folders / "pinning" UI tiles
75
DLNA support
65
Expanded support for Sharing (save to HDD, save video to other services, uncompressed screenshot support)
61
More control over download order/status/priority
56
Better Friends List support (notifications, more comms/social options)
40
Sorting and filtering through the Dynamic Menu interface (everywhere)
39
Option to dim the DS4 light bar
39
3D blu-ray support
37
Ability to change username at will (perhaps with small fee)
24
Disabled HDCP
16
Option to remove uninstalled 3rd party apps from view
15
An official media remote
13
More comprehensive Blu-ray playback options
11
Some kind of Harmony Remote support
9
Touchpad support for virtual mouse in web browser
9
More goddamned avatar choices
8
More comprehensive HDMI-CEC support (Netflix etc)
6
Audio CD support
6
Printer support
0