In theory, my preference is DA or DAO. That because I very much like the concept of a gun NOT being cocked (or even partially cocked) until that is done deliberately. So, one of my favorites is the Sig P250, one of which I do have. These can be a bit difficult to master, however.
In practice, though, I have always really liked the DA/SA'S (the SA mode is nice for precision shooting....and I liked having a decocker, for the reason stated above). But, as I seem to shoot the "Glock style" trigger the best....and I do prefer, at the end of the day, the "constant action" type of trigger, on any platform.....I must put myself into the DA camp.
I have just transitioned to Glocks and no longer have any DA/SA's, as it happens (because I shoot them better).
So, call me DA / DAO....depending on how one chooses to define the Glock trigger.