Info on scape strength would be interesting and useful, but I also think it would be hard to quantify. At least wrt budcount, branching, bloom size, and scape height, you can put numbers on it. Traits like EMO, CMO, substance, and sun fastness are pretty clearly a yes/no. (I am trying to decide if sun fastness and color fastness are the same... Does pigment loss from thrips count as not being color fast? Can rain affect color fastness?)
But how would you judge scape strength? Upright? Leans? Leans HOW MUCH?
For what it's worth, I feel flower substance is more important than sun fastness... A faded flower can still be somewhat attractive, but no flower with disintegrating edges will be.
