Now that we have Ep7 (and soon Ep8 and Ep9) to continue the story, I have lost all reservations about recommending plain ol’ release order. Doesn’t even matter whether you’re a newcomer or veteran.
I’ll agree for new initiates, but for myself and the old hands I usually watch Star Wars with, I’ve got a different perspective. TFA has officially pushed the running time of the saga past the threshold of my same-day marathon endurance, so since I inevitably will need to split it up anyway, I think I’ll be starting with the PT in the future. Fire it up on its own day, make some drinks, reach for something greener if that’s your thing, and MST3K your way through the trilogy, then break for the night and watch the stuff everyone actually wants to see without interruption.