After those two, the series went downhill quickly.
Agreed. Other than finally getting to see what real, trained Jedi could do in their prime, rather than the arthritic fight scenes from ep IV-VI, and other than the Jedi Interceptor starfighters (the ones with the TIE fighter front window) from ep III, the rest of the series was a waste, and I’d even go so far as to call it dreck.
I liked Return of the Jedi up until the first appearance of the ewok. The final clash of Luke and Vader I liked as well. Episode 1 was the nadir. 2 and 3 were marginally better which is damning with faint praise.