I would feel to much as shadow priest or fury warrior with using stuff at 100.
The problem with holy power is it just feels to much like combo points or chi, which has been doen little to much. Shadow had a nice rework on their resource system.
I don't have a solution for it right now, il be back from brainstorming soon.
People will hate me for it, but hammer of wrath is gone and it's fine without. I think judment, maybe because of the animation feels like hammer of wrath.. you know you throw your hammer. I don't think ret is missing an execute abillity and I agree with it not being a paladin niche.
I dislike the fact with have a 8 second window to do our damage without that buff we suck is a annoying gameplay mechanic imo. I wish judment would do something different (something like a dot for 8 second and a slow for 4) without there is space for a return of seals, which is to iconic since vanilla and they could even limit it to 2 different kind of seals. 1 could be how Zeal is working now but include a single target mech to it as well. seal 2 would be utillity or defence.