I think most of the ones mentioned here were some great work but for me, Darth Awesome’s 3-in-1 ‘The Empire Begins’ is the one. It sounds like I dislike the prequels more than some on this thread, though so I really don’t have much interest in sitting through three of them again. ‘The Empire Begins’ is pretty good and I actually like revisiting it.
As far as 3-in-1’s go this one is done really well but it just cuts too much for my liking, and ends up being too long in runtime for a single SW film.
The only way I’d watch The Empire Begins again is if I were wanting to have a marathon but was with people who, like you, really didn’t want to watch the prequels.
Otherwise I’d definitely stick to Q2’s (Thunderclap) The Fall of the Jedi trilogy for I-VI or Hal 9000’s prequel trilogy for IV, V, II, III, VI.
Q2’s is the only cut of TPM I’ll watch now.