Jedi Knight: like Luke Skywalker, but without the whining. Or the charisma. Also involves attacking the Emperor’s secret invisible space fort.

Jedi Consular: spends most of their time curing STDs (Sith-Transmitted Diseases); in their spare time acts as a Wise Counselor who gets ignored mostly.

Republic Trooper: get betrayed by your entire squad defecting to the Empire; track them down for great justice. If you’re a woman, you can pretend you’re playing Commander Shepard. (I am)

Smuggler: “screw the war, I’m gettin’ rich!” (and embarrassing the guy who stole my ship lol) (seriously why is there a head in a jar in my cargo hold)

Sith Warrior: rises to power, betrayed by their master, survives and seeks revenge. Solid story up until you learn the master actually gets his info from a spirit who is a manifestation of the dark side even though he has an extensive spy network.

Sith Inquisitor: former slave who eats Force-ghosts for power-ups, then gets indigestion and has to find a cure before the Force-ghosts kill them. Also the Keeper of Historical Sith Knowledge sometimes when they feel like it.

Bounty Hunter: like Boba Fett, but with more macho chest-pounding.

Imperial Agent: Infiltration! Intrigue! Trying not to die for or by annoying Sith who don’t follow the rules!

Basically, Bioware fails to maintain logic, internal or external, whenever the Force is involved.