Out of all of them, I would have to say LBT 6, and here is why:
1. Dinah and Danah - I know some people may feel otherwise, but I just didn't really like them. You had no idea where they came from, and you never hear from them again. What, did Mr. Threehorn all of a sudden become a bisexual and start having babies? (I know that sounds terrible

) Now maybe if the movie explained how they got there, it would be a little different, but at the moment they are my least favorite characters.
2. The Songs - Oh my god, what were they thinking? I will admit, I actually liked When You're On You Own because it wasn't so lame, but the other two? Lone Dinosaur was just so idiotic in my opinion, and what was with the "YEEEEHAW!!!" at the end. I don't recall any of them being cowboys. And then there was Bad Luck. The only good thing about that song was Spike's scatt. Don't ask me why, I just for some reason liked that part. Otherwise, the song was terrible.
3. The Plot - The whole idea of "bad luck" descending upon the Great Vallet was kind of wierd to me. Besides the tornado towards the end, all of the other situations seemed dumb. I'm not sure Ducky would be talking if her beak was stung numerous times by bees, and Saurus Rock just seemed odd. To sum it up, the plot was pretty bad.