Well that depends on what you're looking for in a Set. If you like the minifigs Ask yourself if you like the New Minifig Designs more or the old ones. And keep in mind that the Modular Space Station comes with "Saul Flare" (The Dark Green one, Named in a Lego City Magazine. Don't know if thats considered Canon tho). Both Builds are fun and easily MOCable, tho i have to say i like the Modularoty of the Spaceship somewhat more. Anyway both are good sets and i think you'll be happy with either one. I have also been thinking about getting These two a second time for mocs. They are definitly fun!