[G 2014 General] MobileHD:
I don't know if it would be much help but since you asked, this is what I've disabled this time around:

[Android Packages]

Android Live Wallpapers (com.android.wallpaper)

Basic Daydreams (com.android.dreams.basic)

Bookmark Provider (com.android.bookmarkprovider)

Bubbles (com.android.noisefield)

Calendar Storage (com.android.providers.calendar)

Call Log Backup/Restore (com.android.providers.calllogbackup)

com.android.providers.partnerbookmarks (com.android.providers.partnerbookmarks)

com.android.wallpaper.holospiral (com.android.wallpaper.holospiral)

Email (com.android.email)

Exchange Services (com.android.exchange)

HTML Viewer (com.android.htmlviewer)

Phase Beam (com.android.phasebeam)

Print Spooler (com.android.printspooler)

Trusted Face (com.android.facelock)

[Google Packages]

Android System WebView (com.google.android.webview)

Calendar (com.google.android.calendar)

Clock (com.google.android.deskclock)

Cloud Print (com.google.android.apps.cloudprint)

Drive (com.google.android.apps.docs)

Gmail (com.google.android.gm)

Google Hindi Input (com.google.android.apps.inputmethod.hindi)

Google Korean Input (com.google.android.apps.inputmethod.korean)

Google Pinyin Input (com.google.android.inputmethod.pinyin)

Google Play Books (com.google.android.apps.books)

Google Play Games (com.google.android.play.games)

Google Play Movies & TV (com.google.android.videos)

Google Play Music (com.google.android.music)

Google Play Newsstand (com.google.android.apps.magazines)

Google Text-to-speech Engine (com.google.android.tts)

Google+ (com.google.android.apps.plus)

Hangouts (com.google.android.talk)

Maps (com.google.android.apps.maps)

Photos (com.google.android.gallery3d)

Photos (com.google.android.apps.photos)

TalkBack (com.google.android.marvin.talkback)

Translate (com.google.android.apps.translate)

[Motorola Packages] **some package requires root to be disabled with the use of a third-party app (App Quarantine by ramdroid)

Assist (com.motorola.contextual.smartrules2)

Audio Effects (com.motorola.audioeffects)

BrowserMessage (com.motorola.wappushsi)

com.motorola.motgeofencesvc (com.motorola.motgeofencesvc) --Disabled with App Quarantine by ramdroid (requires root)

CQATest (com.motorola.motocit)

Device Management (com.motorola.ccc.devicemanagement)

DMService (com.motorola.android.dm.service) --Disabled with App Quarantine by ramdroid (requires root)

FM Radio (com.motorola.fmplayer)

FMRadioService (com.motorola.android.fmradio) --Disabled with App Quarantine by ramdroid (requires root)

Gallery (com.motorola.MotGallery2)

Help (com.motorola.genie)

MotoCare (com.motorola.motocare) --Disabled with App Quarantine by ramdroid (requires root)

MotoCareInt (com.motorola.motocare.internal) --Disabled with App Quarantine by ramdroid (requires root)

Motorola AppDirectedSmsProxy Service (com.motorola.appdirectedsmsproxy) --Disabled with App Quarantine by ramdroid (requires root)

Motorola bgapp1 (com.motorola.bodyguard)

Motorola Boot Services (com.motorola.moodles) --Disabled with App Quarantine by ramdroid (requires root)

Motorola Checkin (com.motorola.ccc.checkin)

Motorola Contextual Services (com.motorola.context)

Motorola Modem Service (com.motorola.bach.modemstats) --Disabled with App Quarantine by ramdroid (requires root)

Motorola Notifications (com.motorola.ccc.notification)

Motorola One Time Init (com.motorola.onetimeinitializer)

Motorola Services Main (com.motorola.ccc.mainplm) --Disabled with App Quarantine by ramdroid (requires root)

Motorola Update Services (com.motorola.ccc.ota) --Disabled with App Quarantine by ramdroid (requires root)

MotoSignatureApp (com.motorola.motosignature.app)

NativeDropBoxAgent (com.motorola.android.nativedropboxagent) --Disabled with App Quarantine by ramdroid (requires root)

Preset (com.motorola.contacts.preloadcontacts)

Rescue Add-On: Motorola (com.lmi.motorola.rescuesecurity) --Disabled with App Quarantine by ramdroid (requires root)

Setup (com.motorola.setup)

[Other Packages] --Disabled with App Quarantine by ramdroid (requires root)

com.qualcomm.atfwd (com.qualcomm.atfwd)

I also used Disable Service by WangQi to disable services from Google Play Services that I don't want/use such as wearables, location, reporting & telemetries.

I generally never update the following apps:

Google App (com.google.android.googlequicksearchbox)

Google Now Launcher (com.google.android.launcher)

Google Keyboard (com.google.android.inputmethod.latin)

I also go through each android settings and app settings and disable any telemetries that I find.

Please note that this is my setup and your needs may differ from mine so you may have to tweak things to your liking.