Lauren Dinh is just a very bland skater, she got lots of triples, but does not seem to have the power, speed & artistry.
Is it necessary to be so rude about such a young skater? She's all of what, 12, how much artistry is she supposed to have?
I've watched both Jiang and Dinh; have yet to watch Lexie Hood's skates.
Of the two, I prefer Jiang. She has more presence on the ice and better presentation, although since they're so young, it's not something Dinh should worry much about yet. Her jumps aren't small, but they're not huge either. Her spins are well centered. That said, I agree with feraina - the tilt on her triples is quite noticeable (if I noticed, it must be

) and it'll definitely hurt her consistency. Her spins positions need work, particularly her layback. I wonder why she doesn't do a sit spin. I find the choice of "Chicago" for her SP to be a little inappropiate.
Dinh is more consistent and has better air position in her jumps, though they seem smaller than Jiang's. She's sloppier overall but has nicer spins (imo). Her spirals need a lot of work, though! And did she really have to skate to Turandot? Ugh.
That's my main wish for younger skaters - PICK FUN MUSIC!! You're only young once. They have so much time to select blah warhorses like Turandot and Carmen.