I played d6 SW for many years. We briefly tried d20 and then gave it up, although I have to admit to being a fan of the SAGA Star Wars system. The only hiccup I always had with d6 is that in a mixed group of Jedi / non-Jedi, the Jedi completely outshine the others. Which is true to the movies, but not much fun for the other players (my wife played an extremely experienced bounty hunter, with similar skill levels to Boba Fett (seriously!) who was still outshone by my best mate's Jedi character - he'd leap into the fray and decimate the opposition before she got a shot off, most of the time).
When you are dead, you don't know that you are dead. It is difficult only for others.
It's the same when you are stupid...