I personally liked the prequel SW trilogy.
Now before you kill me: I know that it was worse than the other movies, but imo: Episode 1 < Episode 2 < Episode 3.
Episode 1 was the worst. I think Solo is better than it. Jar Jar's species was kinda annoying, but this is the only bad think I remember from the last time I watched it (I need to rewatch it). Also, it had a great villain: Darth Maul, which return in Solo, thing that thrilled everybody. I just hope he will return in the future Boba Fett movie or in a future movie at all.
Episode 2 was better and more interesting than 1. I actually really liked it. The only real flaw that I can remember (again, I need to watch it) is that it was heavily based on CGI background, especially the droid factory. This kinda annoyed me.
And here may be the biggest controversy: I think that Episode 3 was MCU-like good. The whole thing with Anakin's internal struggle and with the born of Darth Vader made me love this movie. It is not as good as the 5th and 6th episodes, but I think I like it more than Rogue One.