I'm going to start with #10

I agree with this whole-heartedly. That scene always fell flat because it's a major reveal(Luke is Leia's brother) (Vader is ALSO Leia's dad) and yet it goes nowhere, only to be mentioned at the very end just so Han can get the girl and not have to worry about Luke sipping at his Kool-Aid.

Now #7

I never saw any of these movies until Christmas of 1995 for the "last time" release. Even as 10 year old I thought Luke saying there was good in his father was pulled out of thin air. For the trilogy to end vader didn't have to be redeemed. Luke could have just destroyed him and then took out the Emperor and verything could have been hunky-dory. I'm not saying I dislike the redemption angle, it's just that as it is, it does feel shoe-horned in.

DEATH STAR II. They could have filled that slot with anything they wanted, another super weapon, a massive star destroyer facility, anything.

Hell, it could have been a massive Imperial shipyard orbiting Endor. The Empire could be mining raw materials from the moon. This would piss the Ewoks off and give more of a reason for them to join with the Rebels.

That "certain point of view" schtick was unnecessary. Are we really supposed to believe that Obi-Wan honestly thinks that Anakin Skywalker died when Darth Vader was born? Because if that's not what he believes then why give that speech in the first place. He could have just flat-out told Luke that he wasn't ready to hear the truth yet. What would Luke have done, rushed to face his father as a completely untrained farmboy? Obi-Wan could have even admitted that maybe he was wrong for holding the information from him. It would have given more honesty to his character to admit error to Luke and would lead in nicely to admitting error in training Anakin.