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http://www.starwars.com/databank/character/luminaraunduli/
She's the Jedi with the tire-track goatee.
Tire tracks... lol
Here's another site I found, seems mostly dedicated to her.
Bastila her greatest powers were with the force, she does not have control of the Star Forge, never did....
Luminara seems more focused and can apparantly move like hell, Bastila would not be able to defeat something like that... Not unless her force powers were a lot more powerful... Then she could just keep Luminara away from her and kill her from a distance
Sith are strong indeed, but Bastila wasn't that much stronger when Revan confronted her. She had learned manipulation of dark side powers, but a competent Jedi Knight could still outmanuerver that (See Obi Wan versus Dooku in AOTC). I am doubting that Malak was able to teach her comprehensive fighting styles in their little time together, and why would he when all he wanted her for was her famed Battle Meditation?
And Luminara probably has more experience in general, since she was entrusted with a padawan. Bastila was without an apprentice, being considered not old or mature enough to have one.
As for learning from Revan, it's doubtful. True, she was observing him, but not for battle technique. He was not much wiser than a fresh padawan considering his memory had been wiped recently, and only his amazing intellect and Force ability really showed through. In any case, there's no evidence to suggest Bastila learned from Revan, unless you consider the dark side ending, and even then he just "Hey, Bastila, I'm going out to check on something... be back whenever." right after the victory of the Star Forge.