It is possible to revert to 4.3, if the phone can still be flashed. If it can't then your warranty is void by the flash counter.
Always backup your efs before you flash anything, it can't be repaired.
Asking for rom recommendation is against xda rules, as it can cause bad feeling, try them for yourself.
Sent from my GT-I9300 using Tapatalk
Note: This quote doesn't automatically apply to everyone, decide for yourself if it might apply to you.
Originally Posted by justruss
What has this place become?
It's essentially a few people graciously answering the same repeating of immature, lazy, demanding questions from the masses.
Nobody searches. Nobody reads the first posts or titles of threads. Nobody even looks at posts a couple above their own.