Nice photos, Mathman. I think the costume she's wearing in them is much more flattering for her than the one she wore at Campbell's and the LP at SA.
I'll say right away that we'll have to agree to disagree on this, but at least for me, when I say Alissa looks gangly, it's not her body, it's the way she moves. Perhaps saying that often her movements look disjointed might more accurately describe what I see.
I've said in other posts that I am incredibly impressed with her edges, spins (breathtaking layback), and the amplitude, extension, and amazingly deep edges she gets on her spiral sequence. The weaknesses I see in Alissa is the poor use of her arms and upper body in connection with the rest of her body. Her arms often "dangle" while she's holding a spiral position or her arms and upper body don't become part of the total shape of the movement. Also, on her spiral sequence, while the free leg has beautiful extension and superb amplitude, it looks as if she just sticks the leg up there rather than making the whole body part of the timing and stretch.
The good news is, she's only 18 and as you said, she's got terrific basics, so I think the problems with her arms, upper body, and "lack of connectedness" throughout her body will be fairly easy for her to correct as opposed to the great difficulty it would be at her age to correct poor basics. So if she has to have weaknesses, she has the right ones in that they are relatively easy to fix.
In a way she reminds me of Timothy Goebel when he was all quads and no style. Obviously he's had major problems since, but just prior to the '02 Olympics, Goebel's style seemed to make a quantum leap improvement between Nationals and the Olympics. Alissa is at just the right age, IMO, to make those improvements in presentation.
She also has both an athletic energy and warm personality on the ice, which I think invites the audience and the judges into her skating. IMO, that is a one of the most valuable qualities a skater can have and you either have it or you don't. Alissa Czisny's got it!
Rgirl