Hi again, I wanted to update my rom (Galaxy S3). which one do you suggest? because i am really confused( there are too many of them) i am really bored with the current one (4.1.2). what are my options?

Of course.

You can use CWM as well

back and menu backlight
settings>advance>screen>untick backlight

for your next 2 question, they dont affect me because i dont use them.

notification toggles became obsolete since android 4.2 introduce quick settings.
i saw in temasek thread someone said omni added it back in yesterday nightly. so maybe temasek will include it.

camera i prefer to save to internel storage since internal write speed is faster.
which gapps you flash? i flash banks standard gapps, it has photosphere cam but no option to save to external.
i did flash the camera fix posted above, it gives me the 4.3 camera app without replacing the photosphere camera app.
so you have 2 camera app. the 4.3 one has option to save to external.

help.. on latest v37 temasek
my prox sensor keep on red when sceen off.
it eating my battery like no others

I coming here looking for the same question/answer. LOL
Anyway, I heard that the SunGlobal good, anyone here S3 user using SunGlobal battery?