I was tired of seing people saying that the U on ICS stock rom didn't have enough free ram and that it was laggy (see you JB) and also there are a few posts enumerating
safe system apps to remove/delete but none of them are very good or specific to the U, so i decided to create this post.
The 1st reason for low free ram are heavy background apps like facebook, etc..., bloatware and also a lot of apps/games installed on the rom.
With this set up running for months without any problems i always get 180>200MB+ free ram on boot and with normal usage i always have in average 130>150MB+ of free ram.
So let's get right to it, bellow are SS of my system apps/apps installed:
PS: By mistake i put gmaps apps in apps section too, forget it
PS2: I posted this list because of the greenify hibernated apps list posted lower.
Next here are SS of the only apps i have in \system\app\ :
PS: You need to be rooted to acess this folder.
PS2: Use any file explorer with root acess to delete all the other useless files, like ES File Explorer.
And finally below are SS of my auto hibernated/hibernated files on greenify:
PS: Remember that in order to hibernate system apps you have to buy the donation version of greenify, because some system apps can't be converted to user apps using Titanium Backup.
If you have any questions/doubts feel free to ask.
Hope this post helps you