Making every single skill do a different amount of damage.
Removing legendary effects.
Capping stats such as health.
Sorry, but if that's what PvP will be, then I vote a giant hell no.
I think you have some good ideas, and appreciate you sharing them, but I also agree with Bleu42 here.
I think they will (eventually) find a better way to implement pvp than this.
I personally think a DOTA esque tower defense pvp match would be fun. Those heroes are never balanced....