9 ways Lucas screwed over Vader and the people who played him.
1 Didn't tell Prowse Vader's voice would be dubbed by someone else.
2 Didn't acknowledge Bob Anderson covered the fighting in V and VI till Hamill forced his hand.
3 Decided young Anakin would be best played by the annoying kid from Jingle all the way.
4 Decided the next Anakin would have acting skills that would be considered sub par in Emmerdale.
5 Replaced Sebastian Shaw looking kind and happy as a force ghost with Hayden looking like he was planning a rape.
6 Managed to give Vader a pink lightsaber in the special editions.
7 Nooooooooooooooooooo!
8 as above, but over some good silent acting in VI.
9 Vader/Anakin wins one fight against a force powered opponent in the entire six movies.
Don't believe me?
I no fight, but blows up a battle station by accident.
II loses against Dooku
III wins against Dooku, looses against Obi Wan, technically he could be said to win the fight against the younglings, but yeah, woo hoo, he can beat a four year old, go Vader go!
IV Obi Wan vanishes before end of fight, no win.
V Luke jumps off before end of fight, technically not a win for Vader since he was supposed to kill or turn him.
VI Doing fairly well with Luke, then gets tired after five minutes and kneels down in some vain hope that the boy whose hand he cut off wont return the favour, then shoves an old man down a pit while he isn't looking.
Did I miss any?