Best for me and the one I always fall back to is Nova launcher. I also wish they implement an easy access to Google Now in future updates.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Nexus 5 - 32GB - D820 - latest 4.4.4 Mahdi ROM with Franco's Kernel
Sony Xperia Z Ultra - C6833 - White - Latest stock rom and kernel - rooted with Dual Recovery.