Here is a non-comprehensive list of apps that can be safely removed via a root browser or through Titanium Backup (I'm doing it through Titanium Backup):
-MetroPCS AppStore
-Metro411
-Metro Browser
-Metro Studio
-LG Home (Make sure you have another launcher set active!)
-LG Keyboard (Make sure you have another keyboard installed first!)
-LG Home Selector
-LG File Manager
-LG Home Theme
-Google Drive
-Email (I use the Gmail app)
-Memo
-Memo widget
-Music 4.3.11 (Google Play music!)
-Music 4.5.16 (Google Play music!)
-Picasa Uploader
-Google TalkBack
-Task Manager 4.2.3
-Text Translator 4.2.3
-Visual Voicemail (I reinstalled this after testing because I like it)
-Voice Recorder 4.2.13
-LG Weather
-LG Weather theme
I will edit this post with updated apps that are safe to delete as I find more!
-MetroPCS AppStore
-Metro411
-Metro Browser
-Metro Studio
-LG Home (Make sure you have another launcher set active!)
-LG Keyboard (Make sure you have another keyboard installed first!)
-LG Home Selector
-LG File Manager
-LG Home Theme
-Google Drive
-Email (I use the Gmail app)
-Memo
-Memo widget
-Music 4.3.11 (Google Play music!)
-Music 4.5.16 (Google Play music!)
-Picasa Uploader
-Google TalkBack
-Task Manager 4.2.3
-Text Translator 4.2.3
-Visual Voicemail (I reinstalled this after testing because I like it)
-Voice Recorder 4.2.13
-LG Weather
-LG Weather theme
I will edit this post with updated apps that are safe to delete as I find more!