You can get 3 or more AB or WSG medals in the time it takes to get 3 AV medals.

Also, think.

3 AB medals + 3 WSG + 3 AV =2 * (3 AB or 3 WSG turn ins); so really, if you get 6 of AB and WSG medals, you get the same rep for either one of those two faster.

I only recommend using this quest if you want AV rep - you get more rep faster for AV but slower for the other two BGs.