My daughter wears risport excellence, older model of a stiffness 40, so comparable to the new electra at 45. She just got them two weeks ago. We have handled the Edea boots at our local shop. The edea overture is notably softer than her boots. If edea is a good fit I think you'd be better off with the Chorus.
If the risports fit better, and youre not too big or hard on your boots, then i think the electra would be good. But also consider the stiffer rf3. My daughter easily broke in her new boots, and was doing full depth sit spins on the first day, and she weighs 53 pounds. Now, she's higher level than you, working on double salchow and double loop, but if a 7 year old has no trouble with them, you should at least talk to your skate tech about going stiffer.
The JW Ace blade is what I've bought her, and shes on her fourth pair. They are great.