You know, I voted for Ranka, and then I thought about it. Ranka would be the obvious choice, the safe choice, but it wouldn't shock me if they went with Sheryl.
I think she comes across much better in episode 2 than she does in 1. Episode 3 should be very interesting, see how the three react to being trapped together.
There are things that bother me a little bit in both. Between both subs, body language, tone of voice, and what just sounds right, I get what I want out of it. Too early to pick just one. Until one stands above the other, I'll support both releases.
Up until the ASS-1 crashed, Earth was hundreds, if not thousands of years behind technologically from the Protoculture. I think we can cut them a little slack for not having developed a total force field in the 60 years since they moved from the combustion engine to OTEC fold drives.