The TPM score is very good. I don’t remember much of the other two because so much is recycled from TPM.
Aotc definitely but I’d say rots has a very good score also, maybe not as good as tpm.
Musically either Williams is just getting old or Lucas wasn’t giving him good instructions or the whole editing process really screwed things up. I think TPM was the last good Star Wars score. AOTC has Across the Stars and then blech. His songs for TFA are much better than the ROTS score. But to be honest, the music is best in TESB. It would be wonderful if Rian Johnson could get Williams to deliver a stunning score again. Music can make the movie. I think Rogue One might have been even better with Williams, but they used his themes with some new ones and did something very good (if not perfect). I hadn’t really thought about it before, but I think musically, I would rank William’s films scores as TESB, TPM, ROTJ, ANH, ATOC, TFA, ROTS. (I put ANH lower because it uses more varied styles that don’t fit as well with the saga as a whole while TESB, TPM, and ROTJ are more thematically unified)