Short answer: Virtuousness
Long answer: If I am going to use words, it needs this preface. It's about the preface not the words I pick. My highest virtues oppose defining "it," like a vow not to tell anyone what you've learned after hearing holy words. The problem of determinig what is most Right only enters when one demands that there are terms to define it. To me no one's feelings are negatable or are to be confined by anything less than understanding.
I value ( gentleness, unconditional love, openness, humility, patience, and reciprocity ) in myself. But that is just how I translate "it" and the areas in which I can excel without extra effort. In you, I value everything that you will allow me to see.
I encourage people get along with others, not with me specifically. Just because I like certain values that I hold tight doesn't necessarily mean I'm seeking the company of others who like those things the most too, nor do I think anyone needs to carry my same set on their person.
My favorite virtue is the one that works the best for you. I want you not to feel pressured to be able to explain it to me. Feel pressured only to explain it to yourself. I'm serious.