I'm very careful with the use of superlatives, but I'm afraid that to be honest I have to say that I consider LBT 10 the worst of the sequels. They didn't bother at all about making the movie in accordance with previous movies, especially the first one. Some of the characters' actions were really strange, there are some fundamental mistakes in the logic of the story, and the animation also suffered from attempts to include too much photo-realistic stuff in the movie, stuff that doesn't really fit to the drawn characters for my opinion. The sharpteeth were pitiable stupid and I still get mad when I see a sharptooth tripping over Shorty who crawls under his foot (imagine what would have happened if a little longneck had crawled under the foot of the LBT 1 sharptooth), or over a few little peples hurled at it. Moreover I was rather annoyed when everything (including the characters) turned red during some dangerous scenes. We had skies that turned red in case of danger (e.g. LBT 5, 6) and I wasn't to fond of that effect either, but with everything turning red it really looks... oh well, that is only my subjective opinion of course. The songs "Bestest friends" and "Adventuring" are the best I can mention in favor of LBT 10.
Sorry, I don't mean to sound offensive as I know that other land before time fans whose oppinions I value very high think different about LBT 10, but it really wasn't my cup of tea.