I have to say that I am both and neither.
I feel that I am both because I often like being a stag, sharing my wife but remaining in control, still being the dominant one in our relationship, no humiliation to her. Then again, there are also times when we're cuckqueaning, where D is the one being cucked and I humiliate her, telling her that she's a useless whore with loose pussy, making her watch in awkward position as I fuck someone else, having her do pussy cleanup, the whole enchilada. But, at other times, I like being a cuck, losing complete control to D and having her humiliate me, teling me my cock is not big enough, or hard enough, anything to belittle me, to the point of serving her lover and even making my body available to him (yes, I will drink his cum, being fucked in the ass, so on and so forth). I guess it depends on the mood that we are both in and who wants to be the dominant partner at any given time. We switch places according to our mood, and adjust our hook ups accordingly. In our small group, we have individuals who can fulfill the needs for our roles at any given time. We've been into swinging for over 3 years now. It was just partner swapping at first, but for the last year, we're getting really into other (extreme?) stuff.
Nevertheless, I have to also say that I am neither as well. Simply because the majority of the time when we are just living our day-to-day routine, our 'regular' sex life if you will, we're on equal footing. Me telling her what I like or don't like at any given time, and she the same. Sooooo... I guess we're 'confused'? All we know is, if it feels good and it makes everyone happy, then sure as hell we're going to do it. That's how we got into this whole thing in the first place.