For planning yacht a classical overhanging bow is the most popular but we can see more and more vertical, reverse, x-bow and many others on new boats and concept.
They all have their own qualities but they may not apply to planning yacht. Most of them have been created for commercial or military boats with a total different application than cruising yacht The choice of the bow design is often coming from client or brand who would like to have boat that stand out from competitor.
For example the vertical bow is now an most of the modern sailing yacht and gives a more agressive look. On sailing yacht it has the advantage to increase the waterline to the maximum length of the boat. So for an equivalent length boat, the one with vertical bow will be able to go faster. This is only true because the yacht is not planning and it is also helping to obtain better rating against race's rules.
However for planning powerboat, it does not have the same effect. The planning surface of the boat is at the back and the bow is mostly out of water all the time. The negative part of vertical bow is that it does not deflect waves in formed sea so you generally have lot of water coming into the boat!
One advantage of a vertical bow is that you can design a boat with a lower LOA than competitor but with the exact same BOA and interior layout. This way your smaller boat looks like a bigger one!
However if you try to design an elegant slim yacht the vertical bow will have for effect to reduce the beam in way of the foward cabin which could be a problem for customers used to wide double bed.
Personnaly, I believe that all solutions are applicable to cruising yacht as long as the customer understand beforehand the consequence of its choice on the its future navigation.
