they have nothing to do with the Star Wars trilogy...
second if you watch the prequel trilogy first... i still believe it will give away the identity of Darth Vader...
i mean you dont have to be a rocket scientist to figure out that Anakin becomes Vader...
with all the foreshadowing done in AOTC on top of the "im gonna be the most powerful jedi ever" speech.... thats enough to ruin it right there..
plus they're still gonna be giving clues in ROTS...
i still believe they should be watched in their order of release as well...
thats the way im gonna watch them...