I enjoyed the force awakens.
Last Jedi was terrible, mainly because Luke dies for no reason (without even fighting or training Rey).
I haven't watched the latest, but have heard that it's average.
Mandalorian on the other hand is several levels above the movies.
Yesterday I watched EP7 and EP8, which are basically an 80 minute movie. Those episodes were fantastic!
IMO, instead of having Rey, The black dude and Oscar Isaacs as the 3 main good guys in the movies, they should've had Rey, Mando and 'Baby' Yoda.
The problem with the 3 movies was that nobody truly cared if the 3 main good guys lived or died and Rey in particular is not likeable. Mando and Baby would definitely address that.
At the end of the 3rd movie, you could have Emporer P vs Rey, Mando and Baby. That would be an insane fight - not on the level of the Endgame final battle (which was off the charts), but certainly a memorable battle.
You state that Rey is not likeable, which I agree with but then keep her for your scenario, I’d rather replace Rey with Gina Carano (Cara) a better likeable actress and character, Mando could be a Skywalker but that’s not revealed til the third movie.
No need to include the Emperor, that just pisses over the OT.