It comes down to this:
AndrewPast was partly responsible for the speed buff that vigilance/vengeance received.
You should remember that when considering your vote.
Grallmate represents the knowledge and interests of the Guardian tanks.
AndrewPast represents the knowledge and interests of the Guardian DPSers and PvPers.
I'm sure both would be able to provide adequate focus to the skill trees they're less vocal about. However, you are right about AndrewPast and his role in the vigilance 15% buff. That can't be forgotten.