I had only seen the DVD extras to this movie, so this was a new experience for me. The acting was okay, though I most enjoyed the costumes of the Yule Ball, especially the Durmstrang uniforms. All in all, this was not a bad entry in the Harry Potter Movie marathon.
poster from: http://www.impawards.com/2005/harry_potter_and_the_goblet_of_fire.html
I don't see why you think they are so boring. I like them all. In the marathon, everyone hotted/swooned when Cedric (Edward/RPatz) came on screen – pretty funny!