You hit the nail on the head bbken
"I just feel that they hold back, not in their skating because they give that their all, but in their emotions."
Each season they seem to improve one aspect of thier skating or another. They have the speed, the power. They were lacking in the emotions dept. for sure. I guess when skating you are trying to evoke a feeling in the audience. I feel their power and speed but I don't feel real passion between them.
Meryl seems like a reserved person in real life and her expression on the ice is dramatic. But for me it's really up to male skater to convince the audience of passion in a romantic number. Tessa expresses her self similiar to Meryl (IMO). It's Scott who sells the passion by the way he looks at her. Charlie could step it up in the passion dept. I think. Maybe being in love he'll be better at it now? Only time will tell.