I've been playing around with my (Boost) LG Volt and have managed to debloat it a fair bit more than the Heavy debloating list on this page.
Call it the
Extreme Debloat if you want. I tend to install my own preferred apps over a lot of stock stuff (Today Calendar instead of Calendar) and with 1GB of ram on the thing, it helps to disable whatever you don't use. I like a clean, minimal setup.
I use App Quarantine to freeze apps if anyone is wondering, rather than uninstalling apps. Easier to restore it to factory state if I were to resell the device.
My advice to anyone/everyone is that you leave the phone stock and activate first before you attempt any debloating. I had my phone for a few days before it was activated and this became a problem for me even though it was attempting to hands-free activate, it didn't succeed until I did a factory reset.
Accessibility
Alarm/Clock
App Updates
Bluetooth
Boost Zone
Browser
Calculator
Calendar
Clock Widget
Chrome
com.android.providers.partnerbookmarks
com.lge.divx.permission
com.lge.hiddenmenu
com.lge.hiddenpersomenu
com.lge.lgfota.permission
com.lge.permission
com.qualcomm.atfwd
com.qualcomm.timeservice
Connections Optimizer
DLNA
Documents
Downloads
Drive
DRM Service
EasyHome
ELTest
Email
Face Unlock
Favorite Conatcts Widget
File Manager
Font Server (Cannot change fonts if this is disabled)
GNSS Air Test
GnssTest 1.2
Google Backup Transport (No automatic device backups if disabled)
Google Partner Setup
Google Play Books
Google Play Movies & TV
Google Play Music
Google Play Newsstand
Google Search
Google Text-to-speech Engine
Google+
Hangouts
Home (MAKE SURE YOU HAVE A REPLACEMENT LAUNCHER INSTALLED BEFORE DISABLING)
Home selector
Home Theme - Bunnyfairy
Home Theme - LG
HTML Viewer
ItsOn UID
LG Backup
LG GNSS 2
LG Keyboard (MAKE SURE you have another keyboard set as default before you disable)
LG Keyboard Black Theme
LG Keyboard Lovely Theme
LG Keyboard Natural Theme
LG VoiceCommand SpeechPack
LGATCMD Service
LGInstallService
LGSearchWidgetProvider
LGSetupWizard
License Provider
Lumen Toolbar
Maluuba QVoice Interface
Maps
Market Feedback Agent
Memo
Memo Widget
Mobile ID
Music
Music (Purple Icon)
NFC Service
Photo Album
Picasa Uploader
Plug & Pop
Preferred Activity Setter
Print Spooler
ProcessObserver
Qualcomm IZat
QuickMemo
QuickRemote
Quickset SDK Lite
Quickset SetUp
QVoice Engine
QVoice Speech Pack
Self Service
Service Programu
Setup Wizard
Shutdown Monitor
Smart Screen
SmartShare Push
SmartShare.Beam
SmartShareProvider
Software Update
Sprint Installer
SprintExtensionProvider
Streaming Player
Street View
Swype
Tags
TalkBack
Tasks
Touch
Unified EULA
Unused apps
Update Center
Video Trim
Videos
Voice Command
Voice Mate
Voice Recorder
VpnDialogs
Weather
Weather Theme
Wfd Service
Widevine Keybox Test
Wireless storage
Youtube
Nothing crashes though clicking on some options in Settings may result in no response or a force close.
Additional apps I did not disable but are safe to disable if you do not want them:
com.android.backupconfirm
com.android.wallpapercropper
GMail
Live Wallpaper Picker
Lock Screen Settings (but you can't configure anything on the Lockscreen if you do)
Voicemail
Things that I strongly advise you never try disabling no matter how much you think you don't need it:
Android System
Gallery (Camera will break. If you disable Camera, then you can disable Gallery.)
*ALL* "Storage" and "Sync" Apps. Calendar Storage, Contacts Storage, etc... Required for Sync even if the user apps themselves are disabled.
Download Manager (Can no longer download apps from Google Play if you do)
Media Storage (No SDCard if you do)
Phone (even if you leave the advice deactivated and use it as an mp3 player, you can't disable Phone)
System UI (BAD things happen)
What do I use that replaces a lot of this stuff?
AcDisplay over the Lockscreen
QuickPic over Gallery
Lightning Browser over Chrome and Browser
Today Calendar over Calendar
Nova Launcher over Home/Launcher
AOSP Keyboard from Cyanogenmod over LG Keyboard
Fast Notepad over Memo
Google Voice over Voicemail (I don't give out the phone's direct number anyway)
Note: None of the bloat apps that are uninstallable are included in this list (Prince, Feather, Task Manager, etc) because they are not system apps. I, of course, uninstalled them all.