ROTJ Style B is a favourite of mine because it hung my wall as a kid and I'd stare at it for hours and imagine the scenes it depicted when not watching the actual film.

Though Star Wars Style C is my all time favourite.

I have an original framed. It's older than me!

Though Style D as posted above is becoming a favourite of mine too, I'm going to have to get a reprint one day. I never really liked the Star Wars Style A poster for some reason although it's a classic.

Damn Lucasfilm for not making these images the cover art for the dvds. The GOUT nearly got it right, just backwards ;)