I have six to eight of the most popular launchers on my Note 3, Nova Prime, Apex Pro. I always go back to Next Launcher 3D Shell. For me as a power business user I need the productivity of ToDo List, Calendar, other widgets, etc. that come with Next 3D Shell. Nova Prime, Apex and some of the others maybe better price performers but for customizing the maximum widgets and icons Next is just over the top for efficiency and they are updating with new features every month or two. Next is also extremely fast and always stable.
For day to day productivity of a power user and business professional Next is what I really use. That is just comparing 2D vs 2D, the 3D side of Next is another step in the UI world but it uses the same menu and navigation structure. Some of the 3D aficionados would not even consider a launcher with only a 2D side. If money is tight and you can live without some of the features, widgets, not interested in a 3D User Interface then Nova will probably be good enough, but............
Next 3D Shell is the Cadillac of Launchers right now and as you can see it comes with a Cadillac price but as a power user it is worth the extra money because I depend on the Calendar, ToDo List and other PIM widgets so much.