I personally haven’t played factorio, but I know enough about it to prefer satisfactory.
any reason specifically you prefer satisfactory?
I think i'd have to look into satisfactory more, but factorio is more explicitly focused on the gameplay loop, and meta elements of the game itself. Having really good balance, great game design, and super functional gameplay styles.
Whereas satisfactory seems to focus more on the game itself, less than the gameplay styles. I.E. the game creates the gameplay style, the player will follow, as opposed to in factorio, it's explicitly designed around having certain styles of gameplay, which make it very easy to adopt and utilize.
Not to say that you can't with satisfactory, it just seems like it would be a lot more work. Like in factorio i have a set of rail blueprints that are perfect. Space optimally, designed optimally, and work optimally, they're designed so that i can just plonk them down and do as little work as possible and have them functional. I'm not sure satisfactory has that level of gameplay.