No, you shouldn't feel bad about giving commend to a DPS.

Quote Originally Posted by SenorPatty View Post
After a year of playing this game, my comms just go to whoever left a good impression on me or... whoever's hasn't left the duty after we cleared it. Especially after challenge log reset.
This is almost the same way I do things, even giving it to whoever was left in the duty to complete the challenge log.

Quote Originally Posted by LalaRu View Post
When the party gone so good, the best course of action is commend each other. Tank and healer, dps and dps. So everyone comes out with one.
Yes, this would be nice if the party is really good.

What I prefer though is that to be able to give commend to anyone who did his or her job well. If all of other players were doing well with their respective jobs and roles, we should be able to give one to all of them, not just to the best one. Of course, the reverse also applies, you shouldn't give one to any if none were good.