I like 'baseliners'. It's got the implications of average, ordinary, boring, thirteen to the dozen, faceless masses and so on and so forth. It's a damn near perfect word to describe the greatest majority in New Eden from the vantage point of the evolutionary elite. It dehumanizes them quite nicely, making the millions that die by capsuleer hands (or F1 keys, whatever) just mere statistics.
All this and you can say it to someone's face without being derogatory. How awesome is that?
When it comes to capsuleers, I tend to say capsuleers since there's just no real alternatives that I've come up with. Infomorphs get too clunky. Captains and Freecaptains carry implications none of my characters care for. What you'd care to call them would have to depend on your character, really. Beyond capsuleer which is nicely neutral, I don't think there are any terms that are universal enough for everyone to adopt.
"Soulless" would work for two of my characters I guess, since they believe the act of cloning "killed" them and the soul is already gone. Some characters might find that working. "NextGen" or "NGs" is something I saw and liked, implying that capsuleers are the next step in human evolution, which also implies that humanity is now actively guiding it's own evolution instead of just relying on random mutation. You can make similar terms that also implies superiority by default, for the characters that prefers that kind of status.
Hell. "Gods" for the right kind of character.
Beyond capsuleer, I don't think there are any words that can be universally applied to players.