"How do you kill a scoundrel?" You tell them the odds...

I don't think that Sith are innately evil not good. Moreover, I would say that neither are Jedi. I believe that it comes down to ones perception of good and evil. All you can do is compare their beliefs and actions (individually) against your own moral compass. I will take two Sith from vastly different periods to illustrate this: Lumiya (Dark Lady of the Sith between 4 ABY - 41 ABY) and Vitiate (The Sith Emperor in SWTOR). Lumiya desires peace and states "The Sith way is the way of peace. To bring peace, first we must bring justice and order. To bring justice and order to the galaxy, first we must control it". Where as Vitiate *POTENTIAL SPOILER* seeks to kill everyone in the galaxy in order to make himself truly immortal. So you need to ask yourself, do you find both to be evil, one to be evil, or both to be good? Though, if you think that Vitiate's goals are good I may have to stop you from helping him to massacre the galaxy... haha Side note: Then we have all the other Sith throughout SW lore that have goals which blur the lines between good and evil. Revan: to protect the republic from the Sith Empire (before his retcon, which I still pretend didn't happen), Vader: To end a war and save his wife (even though he was manipulated), Kreia: To make the Jedi see her point of view, Caedus: To end a galactic war, and Vergere: Also to get the Jedi to see the force from a different point of view, just to name a few.

It's absolutely possible to lvl up to 55 through PVP. From doing it myself I've concluded that the xp isn't as stable as that from PVE where you can pretty much guarantee the amount of XP you're going to get every hour and I don't get anywhere near as many credits from PVP as I do from PVE. However, you will get plenty of PVP commendations which you can convert to planetary commendations and get moddable gear and mods from the vendors (And 55 gear from PVP vendors with PVP comms), thus completely negating the credit deficit in regards to gear. Skills can be a problem sometimes though if, like me, you spend all your credits of useless things that make your characters look pretty... Summary: - You can lvl to 55 through PVP - Gear is not a problem because of commendations - Don't let vanity get the best of you and spend all your credits on shiny things...