Whenever you use an alternative launcher, you lose access to HTC widgets - Blinkfeed would be in that list, pretty sure.
I've tried a few, and for no reason that I can rationally explain I really, really like Nova better. Of course, I'm still not a One user, so take that as you may.
You'll find working with the dock and folders is _very_ nice in Nova.
Personally, I go with three very spartan screens, and then have my scrolling dock (scrolls independently of the screens) with folders for my various favorite groups of things I do. And you can add 1x1 widgets to the dock.
Try the free version to see if you like it, and then Nova Prime simply adds on more of a good thing.