I will insist on my argument... you should change your mind, they ar different systems, mainly Android is an completely open OS, rooted or not, while iOS is completely closed except jailbreaking, but even with jailbreak you will not able to do all things or "tweaks" as you call these things, as you can do in Android.
As V3ct0rIL said, our answer depends of what you exactly want... your desired tweaks in Android you can get by different ways in Android, depending of the intrussion grade of the "tweak". Some of them you can get in a unrooted device, most in google play, like custom launchers, you don't need to be root to use them, and they will change the interface completely, you can also "convert" your android interface in a iOS interface with some launcher apps in google play, and looking some of your tweaks in the web, using custom launcher you have Barrel, for example. You can also program icons or widgets on the desktop to do what you want using some no-root apps. You don't need airblue tweak in Android, it is a stock functionality, for iGotYa you have Cerberus App, etcetera... if you are root you will be the boss, you will be able to use root apps which will do everything you need like block ads, you can change (root or not) the kernel so that you can overclock the device, or change some tweaks or parameters in android (word "tweaks" is used in Android only for this), like unvolting, overclocking, negative image, led notifications prior S3, fast USB charging, etc... custom ROMS with your favorite "tweaks", etc...
As you can see, possibilities are infinite, so just ask or write what you want to do and we will give you how and where to find what you want...