Daisy and John. R2-D2 is awesome and I love Anthony Daniels, but C-3PO… wow is he annoying.

I always found Threepio well annoying too. It's why R2 swears so much.

R2 and 3P0 will always be the most iconic duo in Star Wars.

Yes, far more iconic but the post is asking about an acting duo. I mean Kenny Baker is awesome and all but he was basically trundling around in a bucket saying nothing.

As characters, definitely C-3PO and R2. But... As actors, I really like Daisy and John. Both are fantastic.

Anthony Daniels and Kenny Baker are classic

But I did the enjoy the duo of Daisy Ridley and John Boyega