2 way, which are the best designs?

Maybe not allow the troll to derail the thread.

Not the epitome but always liked the Focal Diablo.

 Physical limits on driver size and dispersion that are difficult to fully overcome forcing drivers in a 2 way to be overly wide range while having less than ideal dispersion. 

Check out Bob Crites "Cornscala D" speakers.

https://critesspeakers.com/crites-speaker-style-d.html

I can definitely recommend the Magico S1MKII. As good as the A1 is the S1MKII are even better. I picked them instead of the A3. The mid range and highs are incredible. There is something about the coherence of a great 2 way. Plus you can always add a sub to fill out the bass. 

Boston Lynnfield 300L.

These are 2 I am not familiar with, BUT, they are highly praised


GR Research (but I think you have to buy precut wood assemble, and finish yourself

LAS (exclusive to Emerald Physics) 10 Signatures

hth