Entire Dark Forces/Jedi Knight series, Republic Commando, and all of the X-Wing games are worth.
Jedi Outcast and Academy have, hands down, the best lightsaber combat out of any Star Wars game. Bar none.
Republic Commando is...I dunno. I like it a lot despite some issues it has. It feels like Halo meets Rainbow Six but the tactical elements are really downplayed and feel a little shoehorned.
Outta money right now and I don't have a joystick, otherwise I'd get the X-Wing games. I do have a hard copy of X-Wing Alliance so...