The other night I was playing Kvasira in an instance. Yes. A retribution paladin DPSing in an instance. Try not to fall over in shock. It happens.
My damage done was equivalent to a BM hunter one level lower than I was and my DPS was roughly 300. And according to the hunter, I was outdamaging him on boss fights.
I'm jiggling a bit with my rotation on fights. For the MOST part, I ignore consecration, it being a little too mana heavy for my taste. Maybe it will up my DPS that little bit more, but if it's a longer or tougher fight, my mana is required elsewhere... like judging, crusader striking, dispelling and the occasional healing.
I've learned to WAIT to judge Crusader, due to improved judgement, the mana return will net me immediate aggro from the tank. I make sure my seal is on and I go in and whack the mob with my sword. I open up with a crusader strike and THEN judge Crusader and apply Seal of Command.
I have a macro that I use that judges and reapplies seal of command at the same time. This works well enough for me soloing because I'm a tad forgetful sometimes of reapplying seal of command, but the global cooldown sometimes means that I CAN judge command but not be able to reapply seal of command. A swing timer is rather important as well, since you want to make sure that Seal of Command is up as much as possible when you're about to swing your bigass two hander at the mob.
The most important thing.. is Crusader Strike whenever possible.
In a 'normal' fight (instance) where I don't have to cleanse or heal, my mana pool, albeit low, is enough for me. I immediately pop a drink so I stay as far up in mana as I can be, in case we got a 'not-normal' fight.
If I start to get low on mana, or a fight where I have to start cleansing or offhealing, I judge crusader (or wisdom, depending on where the boss is in terms of health when I would switch judgements) and will often just leave seal of command on, judging only when the seal is about to expire. Crusader strike when it's up. And usually that'll do for it. If the mob or boss is pretty high on life and I'm pretty low on mana, thats when I'll sometimes judge wisdom. Honestly though, considering that I'm using a big slow twohander, I don't HIT it enough to get that much mana back. Based on that, I usually just leave crusader on it.
My personal blessing is Blessing of Wisdom, not Might. (I don't have Kings yet.) Unless I need salvation, which sometimes... I will. Paladin DPS is spike damage. When every 6 seconds you have the potential to hit the mob for 1k damage... yikes. Keep your bubble handy. :P
However... Kvasira is so much fun to play. Love. Love. Love.