Board Thread:Questions and Answers/@comment-203.106.142.238-20140905124203/@comment-24430017-20140905212759

The best DD for ASW is high armor and evasion, which are usually the best DD as well. The best DD in my opinion are as follows:

Yukikaze, Shimakaze, Amatsukaze, Yuudachi, Ayanami, Shigure, Verniy.

Mutsuki have the lowest resource cost. They tend to have the lowest repair time and cost as well since they have low base hp. 5-6 Mutsuki should be enough for expeditions.

The rest of DD don't really matter that much in terms of stats. You should just keep ones you like. Many Yuugumo class DD have special equips and are rare if that matters to you.