Darth Vader-esque meditation chamber (usable?) Also, perhaps items and equipment that companions/npc unlocks can be loaded into, for example: *Kolto tank you can stick a companion in (like Malavai Quinn for example) or a med bay bed *Sith torture beds/chairs *Computer terminals you can set your companions to be fiddling with *Lounges for them to be lounging in *Interactive training dummies and range targets for companions (and maybe you) to practice on Stuff along these lines, that allow for more interaction/immersion for you and your companions

Sith Juggernaut- Immortal is pretty enjoyable if you're really going for a Darth Vader-type feel, it's pretty satisfying to Force Choke someone and then leave them to that while you Ravage the poor unfortunate's equally-unfortunate friend. Also fond of Sith Assassin/Scoundrel, especially if you've played through a couple times and don't want to engage EVERY single enemy in your path, having stealth's a good option to get through it, and when you do choose to fight it's fun to shoot some unsuspecting NPC in the back of the head with a shotgun, or lift them into the air and stab them. Still, Sith Sorcerer is my favorite, for reasons covered previously: Lightning is flashy and cool and fits with the rest of the story cinematics.