Photo Studio: Ideal lighting poll

Which would you prefer? I realize that the type/style of photography that you do could have a major impact on your answer to this question. I shoot mostly fashion, beauty and portraits; I use studio lights most of the time, but have been using natural light here and there too. I'm very lucky in that I have my own dedicated studio space that isn't terribly expensive, is centrally located, and has a giant 8-feet-wide, 9-feet-tall window (facing south). The only problem with my space is that it really needs to be juuuuust a little bit bigger; I'd be happy with an extra 100 to 200 square feet as that's about what I could afford.

In my building - which is a great place full of other artists' studios and creative business enterprises such as a jeweler, a small sustainable clothing company, video production, etc. - some time next year we are going to be taking over the floor above us and there are large skylights in some of the spaces up there and there may be the potential to move. I'm not asking this as a serious, I-need-to-decide question; this is more just for fun to see what people think.

I shoot some product, so would probably stay with the S window because I could close it off with a shade. Ideally, I'd like a N window, & wish I could be more helpful. Sorry.

Thanks for the info! Here in Seattle, window light can be so finicky... especially with tall buildings blocking a lot of it. My south facing window, for example, was still pretty dim yesterday (dark, northern winter gloom) between 12:30pm and 2:00pm. I was shooting at f/2.8 and ISO 1600 and still had to push the exposure a little in lightroom.

A window is probably more versatile with being able to block light when needed, I suppose.