I think there is a serious need to re-evaluate the initial ramp up time and cool downs for some skills. I firmly believe this is the main reason for the lack of parity in pvp. The vast majority of pvp heavy characters have one thing in common and that is all their skills have a very low ramp up time and or cooldown. While as characters such as Oro or Yanlong rarely are seen in pvp simply because you might go a whole match without activating their skills.
For example Yanlong vs Gammond bronze skills. I don’t understand from a balance stand point why Yanlongs skill takes 3 times as long to activate and is very dodgeable while Gammond’s can be activated multiple times in a fight and is a lot harder to dodge.