1.Google Now launcher
Google has been working on the Google Now Launcher (formerly known as the Google Experience Launcher) for a bit before its official launch last year, slowly expanding the availability of the app to more devices. It ultimately released the Google Now Launcher into the Play Store free for all, though. The best two features of the Google Now Launcher are, not surprisingly, ways to access Google Now/Google Search faster.
2.Z launcher
Like any good contextual launcher, Nokia Z will keep track of what apps you use, and when you use them; then, it will automatically adjust the shortcuts it offers at different times a day, in order to offer you the most relevant apps at all times. Although, Nokia Z seems to only focus on the time of day, and doesn't go as far as others, One interesting feature that Nokia Z brings is "scribble", which is basically like Google Gesture Search, and allows you to draw a letter on the screen, and it will show your apps and contacts that start with that letter.
3.APUS Launcher
The developer mentions that APUS is just 1 MB, which is ten times less than popular launchers like NOVA, GO, or APEX. In addition, the claims are for two times faster turning of homescreens, precisely on account of the tiny footprint of the new launcher. Naturally, you can't expect the layers and layers of features and functionality that are available with most of the popular full-fledged interface replacements, either. APUS houses apps, folders, shortcuts and widgets on your homescreen, has an app drawer and basic settings and connectivity toggles in the notification bar, and that's that. The only perk you are given are smart folders for app categorization, and the ability to get curated app search and recommendations from the launcher itse
4.Nova launcher
Nova Launcher is one of the lightest and most feature-packed AOSP-like launchers out there. It's often lauded as being the best all-around launcher for Android. It now comes with even more features than before and really sets itself apart from the competition. It already supports Google's Voice Search hotword ("OK, Google), allows its users to greatly alter the layout of their home screen, as well as the transition animations, icon shortcuts, etc. The paid version of the app, Nova Launcher Prime, will provide you with even more customization features. It's essential for customization devotees.

5.Aviate
Another time and location-aware launcher, it sounds a lot like Google Now to us, and we’d indeed call Aviate the Google Now of launchers. Aviate features one dynamically changing main home panel called ‘Spaces’, a second one with ‘Collections’ of apps, a third one that is an alphabetical list of all your apps, and a last one with settings and nearby places.
6.Terrain Home
A custom Android launcher called Terrain Home that functions similarly to Google Now has arrived on the Google Play Store, but with even more cards to show you all the information you need at a quick glance. The launcher aims to make your Android user experience “simpler and more streamlined by putting everything you care about in one place,” and the app is made by a developer, sponsored by Samsung’s Accelerator start-up incubator. Terrain Home has three home panels: a central one that looks like regular Android, one on the left (swipe to the right to bring it up), with a Google Now-like card interface, and another one on the right, with an app drawer that you can easily search through.
7.UR launcher
UR Launcher is an amazing new piece, just released a few days ago, and already amassing accolades. It features the oh-so-trendy minimalistic and lightweight take on the Android launcher paradigm. It's a no-frills launcher that helps you get to your apps faster, fitting everything you need in a handy pop-out bar. Just touch the tab and get access to your recent apps, phone settings, and customization options. No more endless searching in your app drawer. Apps are sorted by profiles, called UR moods, that group together your apps by activity.
8.Blur
This is different than the plethora of sidebar add-ons and launchers out there, and resembles the Google Now Launcher in a great way. Naturally, Blur also supports the goodies you can find with most popular interface replacements out there, like widgets, text, icons, homescreen and drawer grid resizing, landscape option, and so on. Hiding apps and unread counts are added as well. Even the "OK Google" buzzword is active on Blur, so if you want to give a nice sidelined alternative to the Google Now launcher a try, hit the source link below. Make sure you watch the clip first, since a video is worth a thousand pictures, as the old saying goes.
9.flow home (beta)
Don't let your hopes up, Flow is still in beta, but that pesky invitation process is no more, as you can take the latest iteration for a spin from the link above, and have fun with the widget system that was just added, for instance. Flow's simple premise is organized around social media as an endless feed on your homescreen, as you can see in the video below. It currently lets you interact there with Twitter, Facebook, Instagram, Tumblr, and Feedly, with Reddit on the way.
10.Zero launcher
ZERO prides itself on being just 1MB in size, and yet offering some fancy 3D effects, animations and transparencies. It is amazingly fast, too, with 0.2 seconds to launch, and offers free premium themes, as well as HD wallpapers and icons, with easy switching between them. As for fucntionality, besides the usual frills, you can speed up games and apps by cleaning up memory (RAM) and boosting performance with a single tap, or perform fast app search and quickly lock of the phone in a single touch.

Aviate

My default Launcher is OK

OP kindly modify your post( i don't care which ever launcher you will remove ) and insert Nova launcher right up there. Be quick about that.

beinstein:
OP kindly modify your post( i don't care which ever launcher you will remove ) and insert Nova launcher right up there. Be quick about that.

Infact nova launcher shld be top of the list, launcher is super fast, neat and highly customizable.

beinstein:
OP kindly modify your post( i don't care which ever launcher you will remove ) and insert Nova launcher right up there. Be quick about that.

are u satisfied

more pix

killzone:
are u satisfied

Thumbs up to you.

kazzonline:


Infact nova launcher shld be top of the list, launcher is super fast, neat and highly customizable.

You are right about that. I've used several launchers previously, but discovered Nova launcher is a standout among them all.