Hey everyone, first of all this is just my personal opinion about this problem and the solution that I will suggest about it. Here we goes:
I personally love inquistion in pve it gives us a uniqueness flavor feeling that making us different than any other melee class. However, I really don't like how it works in pvp because in pvp situation you have 3 options to use your holy power it's either dpsing, or healing yourself (or friends sometimes) or refreshing inquistion, which making it sometimes more of a burden than a benefits in pvp to be honest.
What I'm thinking about as a temporary solution is to make a pvp paladin set bonus increasing the duration of inquistion by something like 100% or more to make it less annoying in pvp.
Discuss please and thanks for reading.