granting ability to pvp at level 30 was a mistake..

[Paladinleeds]

snip

If we're following this idea, I would have it as such:
Competitive PvP: Wolf Marks, Achievements
Levelling PvP: Seals, Tomes, EXP

As such, I would also make it with CPvP that if your contribution isn't extremely high (let's say the max contribution you can get is 15'000, you'd need 14'750 contribution), or if your team doesn't win, you gain zero Wolf Marks from it, and zero count towards achievements. This way, you have to be darn near perfect to win it. I believe this would spur in the competitive spirit in which you want PvP to become. It would become cutthroat competitive. Levelling PvP, can have rewards more evenly distributed (but perhaps not perfectly evenly distributed to encourage people to still play).

EDIT: With CPvP, I would also make it that dying will reset your contribution to 0. That wouldn't mean the team would lose said contribution however, just it would become classified as contribution by no team member. Similarly, things like overhealing, being interrupted while claiming ice, etc, would also cause some of your contribution (say maybe 80% of it), to become classified as contribution by no team member. This would make it further cutthroat.