Board Thread:General Discussion/@comment-70.83.39.226-20160106205258/@comment-26091666-20160107025540

There's many ways to look at the whole marriage thing, the two chief reasons that I know of are:
 * Marrying them basically for their stats, ignoring for who they are and
 * Marrying them for who they are, and that their stats and all are irrelevant.

Marrying Yamato-class would be useful in both raising their stats as well as historically they were the IJN's most treasured ships as one of its own kind in the world. Most players would strategically marry Yamato-class probably I'd say because once they're married their resource consumption goes down and so that is useful if you can't afford to run them around most of the time. Of course there are other minor benefits such as increased stats.

At the end of the day however it is really up to you on who to marry. Choosing the first one may somewhat be difficult because you only get one free ring via quests and that generally determines whether you're either marrying them for their appearances, etc or really for their stats, or both.