Touched by the Light now converts strength into spellpower. If you were to say, equip a lot of very high strength ret gear, and spec into prot for the +% str talents and defensive stuff, what would be the result?
You will get enormous crits with HotR and SoR, that's what. Replace your 2hander with a slow high dps one handed weapon, and good shield. Str turns into block value, but it also turns into spellpower, which contributes greatly to the damage of the aforementioned attacks. Spec for seals of the pure, reckoning and so on. Grab a glyph of avenger's shield (AS scales disgustingly well as you will soon find out).
I had some trouble killing healers a ret. You blow crusader strike, judgement and divine storm, and have to wait a few seconds for those to come back. I'm beating them like they committed a crime as protribution. SoR and HotR are both 6 second CDs and they hit much much harder than crusader strike. And they are pure, unmitigated holy damage. Avenger's shield glyphed is a ranged attack that silences people (most often permanently). 30 second CD on hammer of justice is always nice too. I really urge you all to try it, if pvp is your thing.