Ducky is my second favorite of the group, after Spike. She instaltly pierces your heart, and it was really sad to find out what happened to Judith Barsi, the girl who originally voiced her.
Movie 6---46:21. She got through that and lived to tell...I respect her even more after that
I really liked her voice from 7 and onwards. She sounds like she's growing up.
I didn't really like her in 6, but I adored her in 7. To see Spike crying at 33:14 over her being gone pratically breaks my heart---thumbs up if you cried, too. And I thought it was really sweet when they found her in that cave. Spike immediately running to her and giving her a lick is one of the most touching moments in the film; all this is truly proof that he cares about her the most.
I really like how LBT 8 gave us a look at the struggle she was having of feeling unable to express herself. It's something all of us have a hard time with at some point, and while 8 wasn't the best LBT film, it definitely succeeded in this area. Eve though she said she'd never get mad at Spike again, I'd actually like to see her break this "promise". She's most interesting when she's mad.
I liked her espicially in the later seqeuls, by which point Littlefoot was losing his charm, and Petrie had gone from cute to annoying. The only complaint I have about her is her meltdown at 69:37 in 11. Seriously---69:31-70:08 was...the huuuuuuuggge meltdown the series had been edging perilously towards ever since
5.
Movie 6---at 41:34-38. She does what's in her case near-equivalent to dropping the F-bomb!!

(Spike too seems to have this temporary fits of acrophobia while he sometimes shows an extreme indifference towards heights, for example when he crosses the LBT 5 log smiling relaxed and with closed eyes).
That was so cute.
And then in 6 he's scared to death to cross the chasm, and I feel so sorry for him. And then he nearly gets gets made into splatter by the tooth that fell off saurus rock. And
then he gets his tale stuck in the hollow log.
And just when you think he's had enough in this film...well, you know what I'm getting at.