I've always wondered which one to do first. I had watched the star wars trilogy on the big screen as a teen many moons ago and stayed out of touch since then. So, I decided to pick up where I left off and googled where to start watching star wars from. I found a reasonable list and started with Episode 1. I didn't care for the movie, but the story seemed interesting. I looked up audiobooks and found that all star wars movies have them. Episode 1 was like 9 hours. I'm glad I watched the movie first. It helped me imagine the scenes, characters and atmosphere easily.
Now, I'm not sure if I should waste time watching the other star wars movies before moving on to the books. I gave it some thought and decided that I'll probably need to watch the movies first in order to catch up on the terminology and world/universe setting. I just feel that it's very disappointing to watch bad acting and a story full of holes with no real tie in between scenes. Historical perspectives are especially important in order to understand the fantastic universe of star wars. I don't mind if the movie is good like the Jason Borne series because then the movie is like a synopsis of the book and not a bunch of scenes strung together with Hollywood style action thrown in for entertainment.