[Galaxy Ace S5830 General] mattshady:
I've listed here all available Jelly Bean 4.2.2 Roms with quick performance, options and bug overview

I will update this thread if an update will be released or even a new Rom

Latest Update: 5th April

Personal favorite:

Cyanogenmod 10.1 RC0 by Mardon

To make sure all roms listed below run very smooth, I recommend:

1.Download Seeder from Play Store and run it on boot

2.Overclock to 844 or 864mhz

3.Use galaxyics governor if available, otherwise use smartassh3 or smartassv2

4.If you using aokp or pacrom go to performance control and set 80ram always free and tick set on boot

Let's start with Vanilla Android:

AOSP Beta 2 by Maclaw Studio

xda-thread(I am NOT the dev) : http://xdaforums.com/showthread.php?t=2181854

Performance: In my opinion the most smoothest JB rom

Options: PURE Android so not many, but that boosts the perfomance

Bugs: Bluetooth and buttons backlight not working (will be fixed in future of course)

HUGE ADVANTAGE ON THIS ROM : This Rom has Maclaw's self-made Kernel based on Samsungs Kernel.It prevents 1,5Ghz overclock at booting (very dangerous, included in all roms listed down), has a custom governor which makes Jelly Bean extremely smooth on the ACE and some other improvements I forgot to mention

CyanogenMod 10.1 Release Candidate 1 by Bieltv.3

xda-thread: http://xdaforums.com/showthread.php?t=2199575

Performance: Very smooth,smoothest cm10.1 ever used on my phone

Options: Main cm features but unfortunetaly NO APOLLO AND DSP MANAGER preinstalled

Bugs:None

CyanogenMod 10.1 Nightly 10th March 2013 by Erikcas

xda-thread(again Im not the dev ^^): http://xdaforums.com/showthread.php?t=2180669

Perfomance: Very smooth, perfect as a daily driver

Options: Who don't knows CM's options? :D

Bugs: None

CyanogenMod 10.1 RC0 by Mardon

xda-thread: http://xdaforums.com/showthread.php?t=2212438

Performance: smoothest cm10.1 I've ever used!

Bugs: None

CyanogenMod 10.1 OD Edition by OldDroid

xda-thread: http://xdaforums.com/showthread.php?p=36835302

Performance: At the beginning very smooth, gets more and more laggy after a while

Options: Main CM10.1 features + advanced lockscreen settings

Bugs: None

Issues: I/O scheduler settings

AOKP mr1 build3 by Erikcas

xda-thread: http://xdaforums.com/showthread.php?t=2173576

Performance: Veeery smooth, even little bit smoother than CM10.1 i think

Options: Main AOKP options, more customizeable than any other Rom

Bugs: Statusbar buggy,aokp version indicator bug,theme chooser fc,sound toggle not addable

PAC-Rom (Paranoid Android 3.10,AOKP mr1,CM10.1) 22.0.0 by OldDroid

xda-thread: http://xdaforums.com/showthread.php?p=37812347

Perfomance:Very smooth in latest update

Options: MOST customizeable ROM I have ever seen.All Paranoid Android settings like Hybrid Mode and Pie Control,All CM10.1 options and all of the AOKP options

Bugs: None

This Rom has galaxyics governor from maclaw in the kernel,I recommend to use it

ParanoidAndroid (AOSPA) 3.15 by olddroid

xda-thread: http://xdaforums.com/showthread.php?t=2211996

Performance: Very laggy, for me absolutely not usable for daily usage

Options: Main PA options, Google is your friend

Bugs: Many layout bugs because it's ported from Hdpi to mdpi