You have 4 variants.
WITH ABB
With Adaptive Body Bias, you may search about it, it was explained before, and it have a lot of documentation.
If you never touched it before, first understand how it works, because it tweaks voltages on your mobo and may harm your mobile if used incorrectly.
WITHOUT ABB
Without Adaptive Body Bias.
and
BOEFFLA
Uses Boeffla Sound Engine to render the sound. If you use this kernel, you will need 'Boeffla Sound' app, on playstore, for tweaking options.
It is really personal preference.
WOLFSON
Uses i9300 own audio rendering for sound. It sounds great, and you will have a lot of tweaks via STweaks in AUDIO tab.
It is your personal preference.
