There are certain fights where paladin meleeing just works out perfectly. One such fight is Terestian Illhoof in Karazhan.
I'm usually assigned to heal the warlock who is killing the imps. What I try to do is drop Consecration every so often to help her out. But this leads to mana problems, and I usually end up having to drink a mana potion or stop the consecrations.
So last night I tried a different strategy. I put Judgement of Wisdom on Illhoof, and melee'd with Seal of Wisdom, healing the warlock as necessary. It worked spectacularly well. I was able to consecrate every 8 seconds, keep the warlock up, add a little bit of melee damage, and end the fight with over 30% mana. I think the fight went a bit faster and much smoother than normal.
In retrospect, I probably should have used Seal of the Crusader for a bit more damage and a bit less regen, but I was really concerned about mana from our previous experiences with him.