I still love to WATCH my lover in action. We always leave some lights on. She likes it "dim" but not dark either. SO....what is most popular, Lights TOTALLY out, lights "nice and bright" or that "romantic...night light dim" effect?
Same here, enough light that we can see each other, but not so much that we are blinded by it. unless there is a nice thunderstorm, then I like the room to be as dark as possible so the light from the lightning fills the room.
Any of them could be fun. I wouldn't want completely dark all the time, but it could be fun to limit ourselves to other senses, as with a blindfold. Generally I think I prefer dim lighting... But I'm not really sure.
We do bright lights more often than not. Couple a exhibitionist/voyeurs. Though I think my favourite is morning light..... when the sun's just about to come up and the brightness is just coming through the windows.