Board Thread:Questions and Answers/@comment-27094620-20151020054444/@comment-26460664-20151020123800

In short:

DD - Weak at day, strong at night just like youkai

CL - Upgraded version of DD

CLT - CL with an ability to dump torps early

CA - Jack of all trades

CAV - CA with an ability to launch planes against everything including submarines

CV - Spam planes all day long, helpless at night.

CVL - Downgraded version of CV with an ability to attack submarines

FBB - Upgraded version of CA

BB - Tank

BBV - Upgraded version of FBB with an ability to launch planes against everything including submarines

SS - Troll