I have a grading system in my head that has a number of factors as to who gets my commendation

player being female (lalafells and roe's don't apply, yes i know I'm shallow)
how playful people are with me (mind you due to another member of the community I'm less playful in dungeon)
player glamour
if players can rescue me from myself

so short version begin most of the time i give the commendation to the healers