The Hobbit prequel trilogy most certainly does not suffer the same problems as the Star Wars prequel trilogy!
Peter Jackson's Hobbit movies are VERY good movies (not merely good).
This thread is comparing two trilogies that are so far apart from each other in quality that they can't even be reasonably compared.
George Lucas's directing of his cast was so poor that even the actors with great talent in the Star Wars prequels came across as bad actors. This issue is 100% absent from The Hobbit movies, where Peter Jackson is proving more than capable of directing quality performances from his cast.
No matter what aspect of the trilogies you compare or what criteria you use, it is still true that even at their worst, Jackson's movies are an entirely different category of quality from even the best of the Star Wars prequels.
And even if someone doesn't put the Hobbit movies on the same pedestal that I do, I'd still say the superiority of the Hobbit movies over the Star Wars prequels remains beyond dispute. The Star Wars prequels are some truly awful movies, practically unique among modern movies in their poorness, so bad that they are beyond comparison with any other trilogy, not just Jackson's.