I really have to disagree.
In fact, Renewed hope has totally different status from Justicar, I would say that you have to get both of them and use in different cases. Remember that +healing and +mp5 are not always the best status. Sometimes you have to get stamina, +healing and spell crit and Justicar have it in good amounts.
By the way, the 2 piece bonus is a huge crap, I never use judgement of light in 25 man raids, mainly because I cannot come closer to the mobs/bosses.
It could increase 50 in holy light/flash light. That would be of  some use.