Originally Posted by Robi959
Is it better to just disable system apps or fully delete them ?
There is ABSOLUTELY zero reason to touch any apps in /system, period. Ever. If you do, it will
break OTAs, if you delete the wrong thing you'll have to reflash the ROM to recover, etc.
Settings-Apps->All, look for the ones you want to disable, do it there. If you can't disable them there, use pm disable com.app.name. If somehow you disable something critical, you can always factory reset to go back to normal.
If you touch /system, factory reset won't un-break what you did.