My personal canon is the original unaltered trilogy including the Return of the Jedi story conferences in which Lucas explained that Anakin didn't know his wife was pregnant (therefore her pregnancy had nothing to do with his reasons for turning to the dark side), and that his wife survived the pregnancy and took Leia to Alderaan and died when Leia was very young but still old enough to reasonably have vague memory of her (only Luke was separated at birth).

In my canonical interpretation, Yoda was Obi Wan's master who trained him to be a Jedi (I reject the idea that it was someone else like The Phantom Menace claims). Also in my canon, Obi Wan decided to train Anakin on his own, not to keep a promise to someone else.

I find EU to be very interesting and I like parts of it, but besides my interpretation of unaltered trilogy and those Jedi conferences, there is literally nothing else I consider "canon."