In all honesty, the secondary trilogy was better for me. Phantom Menace, Attack of the Clones (including the spin off series) and the Revenge of the Sith, all way better off than the "original" trilogy. (In movie format, at least)
I admit the first time I saw New Hope I was hooked on the Star Wars series. And back then Return of the Jedi was my favorite, mainly because Luke got a new Green Lightsaber like Yoda's or Quii-gon Jinn's.
But I'm also dissapointed that George Lucas hung up his hat and washed his hands of the Star Wars franchise. He could've at least co-directed another lasting Trilogy, maybe something that leaned away from the Skywalker family, or a descendant like Luke's Grandson or something.
On the hole though, Attack of the Clones gets my vote.
It's still the coolest. It's still the most action packed, dramatic and appealing the captive audience - no matter the age.
And no offense to Carrie Fisher (even though she's a frog faced toad), Princess Leia's capture could've gone like this for all I care -