Based on simplicity, performance and customization the following are the five launchers to customize your android phone.
Solo launcher is very simple to handle and also is occupies only less amount of space .and its absolutely free to use . some of its features are :
Quick Gestures: Solo launcher allows you to create various quick gestures and it is very easy to assign apps to the gesture.
Themes and Wallpapers: There are numerous themes and wallpapers and they are unique
Nova launcher has tons of customization , off-course some options are Paid . Nova offers two variants Free and Paid version.Most unique features of Nova launcher are as follows:
Gestures: Similar to other launcher Nova allows you to create own gestures but for all options you need to get paid version.
Scroll Effects: Nova offers you various scroll effects and app drawer animation and they are quite impressive.
Unread Counts: It allows you to display unread counts in notification bar for most commonly use apps like whatsapp, Facebook,mail..ect and that too with customize options.
Google Now offers you much more facilities than other launcher but app drawer customization is not much impressive than others.Impressive features are:
Quick Access: Most of the google product comes with Google Now as the default launcher and apps are easily accessible.
Ok Google: Now offers you the ok google , which operates phones major app using voice commands and also allows you search google.
Yahoo’s Aviate is another simple launcher that doesn’t have much customization but its very simple to use . some unique features are:
Smart Stream: Aviate allows the user to flow to app drawer and contact just by swiping left and right . Apps are organized by A-Z and frequently used.
Unique Wallpapers: Aviate provides the user with lots of unique wallpapers through Flicker and also it allows the user to change the wallpaper automatically through internet .
GO Launcher :
GO launcher occupies large space simultaneously with lots of customization .It has lot of default apps like clocks, smart lock,keypad ..etc for unique customization and smooth performance some unique features are:
Widgets: Go launcher allows the user to create more personalized widgets , but most are like plugin apps so it occupies much space in your phones memory.
Hope ! These apps will help your to customize you phone . These ratings are based my personal opinion and user reviews in google play store .