Best Android Launcher

The Android user has an OS that's highly customizable, and it can be said that the app launcher is the defining app for the Android user experience.
If you’re still using your standard default screen you may feel the entire Android experience is lacking. Fortunately, there’s no lack of excellent launchers on the Market, including such crowd-pleasers as LauncherPro and Nova.Launcher and GO Launcher.
My personal favorite is Next Launcher 3D Shell which is developed by the GO Launcher Development Team.
Pictures of my phone with the launcher don't do the app justice so I linked a youtube video from the developers instead.

I've used SPB, Go Launcher HD Pad, and ADW on my Galaxy 10.1 and Blu Life View. Next Launcher offers a wider variety of screen transitions than the others. The screen grid, icon size, and transition speeds are all adjustable. The preference menu is simple to use but goes deep with options galore to choose from. Using NEXT Launcher 3D Shell will definitely boost the Android experience. Check it out at Google Play.