Boy, talk about disparate choices! Personally, I'm quite fond of Magnepans. They have a transparency about them that no boxed speaker duplicates. I only sold mine after we moved and the new house simply wasn't set up for them. As for Klipsch, I've never personally been a fan but they do have a sound of their own. For B&W, I always wanted to like them, but our local dealer frankly hasn't ever even tried to properly set them up. My visit when I recently shopped for replacements was a joke; the saleman had no clue about 2 channel music systems. As for NHT, I've not heard them as there is no local dealer I'm aware of.
You really need to hear all of them yourself given their wide differences. I ended up with a set of Spendors. Great focus and neutrality. Different from the Maggies, but very musical in their own way and a joy to listen to.