Several people said that they are skeptical about the new, detailed ship design system. Honestly, I don't really understand why.
The argumentation seems to be that the generic classes of HoI2 let you assume that there are different ships, but they fall all into a few model categories, because no detailed stats were specified, whereas in the new system, everyone will build the best possible, and thus often unhistorical, build.
First of all, in HoI2 you did research five tech components for every ship design, usually containing main armament size etc., so that the models weren't in fact that unspecific than people say they were.
Second, enough people have posted stats in this thread of ships falling in one HoI2 model category, showing that there were sometimes big differences in armament, armor, etc. Despite that, in HoI2 all these ships were absolutely the same. Do you really think this is the better choice?
Finally, you also assume that
a) the AI will always build the best possible ship system, ignoring historical ship types, despite the fact that we already know that for land units the AI will build different, historical divisions. What makes you assume that this will NOT be true for naval units?
b) there IS something like one best build. Johan said several times now that they spend quite some work on the naval system, and assuming that there is only one best build implies that Paradox fails to implement good trade-offs between armor-speed, armor-armament, etc., allowing for more than one feasible build.
I understand that as long as we don't know all the details we can't exclude all these points. I also understand that some of you are very excited about the naval side of the game, and hope for significant improvements (me too). Still, it seems that you are describing the worst case scenario, that for all that we know, is probably very unlikely.
It just seems funny (no, not really funny, maybe just strange) that people complain about generic models in HoI2 for years, and now that Paradox announces that they will implement more details, allowing different ship builds in HoI3, people start to complain about that.