LiquidSmooth ROM v3.2 is finally out! I have been enjoying the previous v3.1 for weeks but I find that v3.2 is better than ever, giving you more stability and a solid Android 4.4.4 ROM.
Many of earlier Android 4.4.4 custom ROMs sometimes were buggy on some of the variants but I feel the latest version is better than ever. If you are looking for a good, stable 4.4.4 ROM with lots of customization/features, my top two choices are currently Gummy ROM and LiquidSmooth ROM.
For overclocking, also install Agni kernel, which gives you much better battery life and overclocking support up to 2Ghz. For overclocking, I recommend 1.8Ghz at most and you can use either LiquidSmooth Performance menu or the Agni Control app.
For customization, LiquidSmooth ROM offers one of the best customization options through its LiquidSmooth settings (in Settings). You will be able to customize everything from your lockscreen, status bar, navigation bar, CPU, and much more.