I will say PT Palpatine is more interesting than both the OT and PT Yoda.
Yeah, but IMO OT Yoda is more interesting than OT Palpatine.
There was a big debate about what order the movies should be watched in. A general agreement was 4,5, (optional 1), 2,3,6. Watching 4, 5, then having the prequels kinda work as a flashback, then coming into 6 with the knowledge of the prequels. That way someone meets him as Vader, gets the suprise of "Luke I AM YOUR FATHER!", then finds out about a young Anakin, then you come back and get to see him redeemed by his son. Again, 1 is optional. It's not needed for the story and can be watched afterwords as well just to see Darth Maul and Jinn.
Hmm, that puts the sister-reveal at the end of Episode 3. I'm not sure what to think about this...