There is lot of custom ROM for Samsung Galaxy S III. Which one should I choose? Well, try all of them if you can. Find out the best one for you. Omega ROM for Samsung Galaxy S3 is the latest custom ROM that I tried. Omega ROM is based on official Samsung Galaxy S3 firmware and it is deodexed, rooted and zipaligned. Furthermore, Omega ROM is loaded with Aroma installer which ROM installation is fully customizable by user and there are options to install everything and remove bloatware. And Omega Files (kitchen alike app) can help to download new apps, mod, kernel… Then install them with CWM manually.
The Omega ROM v9.1 that I tested was loaded with customizable 15 statusbar toggle buttons, circle battery % mod, call recorder… And I did not install any Samsung applications at all. Anyway, you can install them back or other mod with the help of Omega Files.
Installation guide ~ How to install firmware on Samsung Galaxy S3 with ClockworkMod Recovery? (Video)
Download Omega ROM here.