Darth Vader would win.
[Spoilers] No
It would be Darth Vader's apprentice. Ahsoka Tano (http://starwars.wikia.com/wiki/Ahsoka_Tano) is only a padawan approximately 14 years old. Whereas, Darth Vader's apprentice (http://starwars.wikia.com/wiki/Galen_Marek) was probably about 25 years old. They are both apprentices...but it would be like asking a 14 year old girl to tackle an NFL running back. It's just not gonna happen. He would kill her.
Darth Vader he has a red lightsaber remember may the force be with you!
No.
Green Lantern
yea
Ahsoka Tano's fate is still yet to be revealed
Ahsoka would cause she's a Jedi.
age 14
Ahsoka Tano is voiced by Ashley Eckstein
Ahsoka is a Togruta from planet Shili
google images mate type in "ashoka tano" should coem up with a few good ones or try on wookiepedia