Personally, I always liked the looks of the LaScalas and the Belles. They lack some bass, but they do wonderfully from 60Hz up.

But if you've never heard Klipschorns, you really should make an effort to do so. They are a great sounding speaker, especially when you consider that they were designed during WWII. When I look at a Klipschorn, I visualize the era. B-17's were thundering across the skies and people were listening to world events on RCA Victor five-tube table radios. This is the time when Klipschorns were first built, and knowing that is what really makes them special to me.