I know who my top 5 are, but I don't have a set 10. 6 - 10 is basically in a draft form.
10. Ozzy and Strut: They JUST beat Ichy and Dil as of now. I like their contrasting personalities, and how determined Ozzy was. He was also quite witty when he sang. I like Strut more, however.
9. Hyp: Normally I don't like bullies, but I always like Hyp for some reason. I guess I liked how he was mean but obviously insecure, and then changed after he got into the Mysterious Beyond. I loved one of his final lines: "Because NOT sharing is for babies!" And also this line: "Flying rocks! AAAAAGH!"
8.Chomper: He is my favorite out of the Gang of 7, almost definitely. I loved Littlefoot and Petrie at first, but their characters started lacking for me after awhile. I am not quite sure why I like Chomper. One reason has to be because he's a sharptooth.

I also like his personality.
7. Pterano: Undoubetedly a popular character, and the favored out of the flyer trio. When I was younger I didn't like Pterano because he was so arrogant and full of himself. (In fact, I remember watching the movie and actually thinking "I didn't like Pterano. I liked the other two.

) But now that I'm older, I appreciate his depth as a character, and how he changed. Plus, I love antiheroes. They'e my favorite "type" of person in the world.
6. Ali: My favorite kid in the series. I dunno, I like how sweet and innocent she is. I also love her song.
And now, my definite top five.
5. Grandma: I love her sweet, caring and fair personality.
4. Sierra and the Rainbowfaces: They ended up in a tie. Sierra I loved because he was so ruthless, uncaring and wouldn't mind some violence. He was also one of the only LBT villains I considered a real threat. The rainbowfaces are cool because they're outcasted, open-minded and mysterious.
3. Rinkus: I had a hard battle between him and my 2nd favorite. Rinkus and Sierra are claws down my favorite LBT villains. I love Rinkus because he appeared lowly and dumb, but was in reality clever and the puppetmaster of the flyer trio. He was also silly. "Then why are you hitting me?"
2. Littlefoot's mom: Who doesn't love her? She was so wise, caring and...well...she died! She died to save Littlefoot and Cera, and personally I think she has one of the most dramatic movie deaths of all time, what with the fight, the earthquake and her final words to Littlefoot. It's her death that I cry at the most in cinema history, even more than Mufasa from The Lion King.
Aaaaaaaaand noooooooooooow...my favorite character of all time!
GRANDPA! I love Grandpa Longneck the most because he reminds me of my own grandfather completely. I love my grandfather very much so this is why I love Grandpa.