My one concern with using a drill is to ask how much strength do you (or anyone else using it) have in your hands? I tried one on the KoJack levelers we use and it about flew out of my hands and knocked the teeth out of both me and Dirk. Not quite, but that's what it seemed like. I just don't have the strength to hold on to it.
The power jack was a definite YES on our build sheet. There wasn't any discussion over that one.
I had a camping neighbor using a power drill for whatever on his trailer. Boy, was it noisy! I was just glad he wasn't using it in the wee hours. If I know I'm leaving early in the morning, I try to hitch up the night before, if at all possible.