Board Thread:Questions and Answers/@comment-27197385-20160108211420/@comment-261125-20160108221144

Abukuma K2 is just generally useful thanks to her opening torps and Daihatsu. She's not much of a powerhouse, but odds are you'll get more use out of her than out of all the others you listed combined (even if it's mostly as an expedition mule).

Since you already have Chikuma and Yamashiro K2, I would recommend getting one or both of the Cranes remodeled.

So basically either both Cranes, or Abukuma + whichever Crane you like more.