If you will have one outstanding virtue, what would you want it to be? Why?

if i would choose one outstanding virtue, that would be integrity. integrity simply means being honest with yourself and or doing what you say and believing in what you say you believe in. i want to be honest with my self and also to have self respect so that the people too, would trust and respect me.
when planning a thing, I'm like, doing this thing and then went on to do something else. i lack integrity that's why i think i should build up that virtue. i want and i need to be reasonable and logical when thinking of a plan or decision so that i would not be in doubt or confusion.