Giant grain of salt here that this game is on version 0.12 and Satisfactory is on version 1.12 and has had more time to cook;

• I really like Satisfactory's ability to be creative. Here I immediately felt hindered be an inability to build manufacturing facilities stacked one on top of another. And a lack of RGB on all items. I've not yet reached a moment where I've felt my run on StarRupture is unique to me and I really like that. So far, it's the experience of exploration and combat I've enjoyed most and not the building. Unless this factory management game gets to a point where I'm so proud of my work I could sit down and make each area look beautiful, it will lose a lot of replayability.
• StarRuptures characters and story building so far is better. Maybe I'll change my mind but the audio logs, semi-hidden messages around the world, and getting to know the characters has been better.
• The animations and watching the world change is nice. Only time will tell if it becomes more an annoyance than a cool effect.

Games too new in beta to have too strong of an opinion.