So why Luke and not Leia?

I don't know if the books are cannon anymore but from what I remember reading Luke was being watch by Obi-wan so he could one day stand against his father or turn him back to the light.

Leia was the insurance policy just in case Luke failed.

It's not clear to me that anyone involved did any "choosing." By a coincidence the R2 unit carrying the death star plans came into his possession. Events followed that strange chance.

Now, it seems that there was some fate at work there but it's not like obi wan or anyone else specifically chose that path for him.

I don't know if Revenge of the Sith explains that (it was expected to, but brushed it over at the end).

Maybe they were worried about sexism on a rogue desert planet?

For whatever reason Luke was chosen to be watched over by Obi-Wan while Leia was raised to be a politician on Alderaan.

The ROTS book has a much different feeling at the end than the move.

Organa and his wife wanted a daughter so they took Leia. Obi-Wan then decided to watch over Luke as he was raised by his Uncle and Aunt, and in doing so, sensed Luke's potential in the force. Obi-Wan had no idea if Leia was force sensitive or not. In fact, Yoda was the only one who knew that Leia also had the potential to be a Jedi.

This is evidenced by the conversation between Obi-Wan and Yoda in ESB.

Obi-Wan: "That boy is our only hope."
Yoda : "No, there is another."

I saw it beginning to crystalize... hence the need for unconscious medical treatment... but not frozen.

So you just didnt like the way she looked (positioning of her body) thought she looked silly, "mary-poppinsey". That's what you didn't like? If she would have looked cooler you wouldn't have had a problem?

Lots of different answers here and some of the scenes are coming back to me.

I'll have to re-watch for myself just to be sure, though.

I'm guessing he wasn't.

But Leia got involved in politics and was a senator and in the public eye.

Training her was going to be an impossibility at that point.

Luke was the safer bet at that point.

No, the whole thing sucked. And if you liked it, you suck too.

This is where I am.

Actually the more I think about it...NEITHER of them were going to be trained, because Owen was against it.

It was only the events of ANH that led Luke ass backwards into being trained.

Thank the Force!

Yeah it was Kenobi's goal to train luke from the start but Owen was gonna have none of that shit after hearing about anakins fall.

Sexism? No idea. Could have been leia but organna's wife wanted a girl, so he took leia. That left luke to go with obi wan who dishes him off to his uncle and just keep tabs on him from afar. Don't think there was a master plan at that time to train either of them... just wanted to keep them from vadar. In fact, Yoda initially disagrees to Luke's training because he (luke) is too old.

Flinthillschief has it right.