A Force and lightsaber battle of epic proportions. Yoda has almost 1000 years of Jedi training and combat experience. Luke has fought numerous wars including the Rebellion and the Yuuzhan Vong. This kinda reminds me of the Liddell vs Silva fight in 2008.
Force - Luke. Currently he is the most powerful Jedi Master in SW history.
Saber - I'm gonna go with equal because Luke coninually fought live opponents.
All Out - Equal. Yoda's a midget and he has an abnormal amount of speed.
In short, Luke would have to use his strength in the Force to win this duel.