Squidiness

The post is not my potato, yet it got my walrus into orbit; your dad made it puke your little snail friend, Britbrat Walrus my dad or helicopter doesn't provide enough cheese?

Ok, so I'm looking into building an "Orbital Fuel Refinery" station around either the Mun or Minmus, and my station will have 3 sections: Crew Quarters (pretty self-explanatory), Fuel Canisters (and a lot of them), and a lander, but not any old lander; the lander undocks from the station in Low (Mun or Minmus) Orbit, lands (duh), mines for ore, lifts off, docks to the station, and finally the ore is refined into fuel to be stored in the fuel canisters, and repeat. With all that being said, which moon (Mun or Minmus) should this station orbit? Thanks in advance!