I am no expert on the subject, but it seems well known that hp/prot is weighed more heavily towards a characters power than other stats. While this has been mentioned before, I haven't seen many ask for a change.
This impacts us in several ways, although the level of impact varies:
1. In GW, by the teams you are matched against.
2. Arena, when viewing another teams power.
3. The perception of ones own roster due to the way they sort.
If they could change this system, I think the result would be great for everyone. Hp/prot could still weigh heavily towards power for tanks & healers. For attackers though they could make other stats like speed, crit chance/damage, & offense more valuable.
I know not all tanks are the exact same (you may stack speed on han but wouldnt on chewie for example), but just making attackers as a group weigh stats differently would be a positive change imo. Although, it would be great if they could set them individually for each character.