Not to be that one guy but I do have to make one "umm actually". In most cases the Iowa class battleships especially the USS Missouri (BB-63) would end up winning. This has to do with its superior fire control among other things I won't list here unless you want to actually get into this. Of course the Ijn Yamato had its own advantages such as larger guns and even had the best Optical fire systems in the world however radar is still better even at day at some ranges.

Note it can take me a long time to reply but I will do my best to answer any rebuttals (if you have any) by the end of the week.

I get it, I'll wait. It's not the first time I've had to wait for long answers. But I'd suggest you hurry up, because I have some big old problems that need to be addressed right now, or else it'll get worse.

Well today is your lucky day because I woke up sick today and have time for once. Anyway when looking at the basic stats of the two ships it is easy to overlook the Iowa and just put the Yamato into a league of its own and forget about comparing them further. (note that I am comparing the Iowa instead of its larger sister the Missouri with the Yamato because I have more information on the Iowa also to be clear I am comparing the unmodernized Iowa to the Yamato) However it is the overlooked "side details" that make all the difference but before I can get to that I need to explain the basic stats of each ship and how they compare to each other in each category. The categories are Main Armament (Yamato is better), Armor Protection (Yamato is better), Speed and Maneuverability (Iowa is better), Fire Control Systems (Iowa is better), Secondary and Anti-Aircraft (AA) Armament (Iowa Iowa is better), Damage Control and Survivability (Iowa is better), and Size/dimensions (Goes to Yamato but size is not necessarily an advantage) in that order so lets get into it. 1.) Main Armament. The Yamato wins but not by as much as you might think. Well the basic stats of its 9 Type 94 naval guns are better than the Iowa's Mark 7 naval guns in ways like caliber (obviously) and in max range (not to be confused with max EFFECTIVE range). The Iowa's Mark 7 naval guns had a higher rate of fire which is the biggest thing because if neither the Iowa or Yamato kill the other on the first volley than the Iowa would get to fire its second before the Yamato and if it hits something important it could be decisive and this applies to every volley exchange after... I know this is abrupt and a weird place to pause but my feverish brain plus my rigorous fact checking and not to mention the 4ish hours of sleep I got last night has left me more than tired. So I am going to continue on this later (I will go back to working on it in no more than 24 hours). In the meantime please feel free to ask any questions (I insist because honestly it is a lot easier to answer narrow ship questions compared to creating a... whatever this is) ha.

Umm so in retrospect not sure if I can still hit that 24 hour deadline after all as I despite being sick have had a busy day including a trip to the ER I only just got back from but I will try to at least get back to working on it by tonight.

mm, as you may know, I love history and any opinion on this topic, so you can tell me more about it, but I don't really understand ships from World War II. I'm more interested in tanks and planes from the same war. I also like ships and tanks from World War I, as well as the standard trench warfare with bayonets))
P.S. In the same way, we can compare which is better, Bismarck or Dunkirk, or think about who actually won the Battle of Jutland in the early summer of 1916.