Ruby Knight Vindicator is a great gish class too.
Will you be taking Divine Metamagic[Persistent Spell] ?
I'm well-acquainted with RKV, but I'm not sure if that's the route I want to go down--my fiancee tends to play relatively simple classes with straightforward applications like Barbarian and Sorcerer, but she's had a taste of the Crusader class and seems to enjoy it--it doesn't hurt that the one-shot she played one in had an "unhittable" pet NPC of the DM's, and she just used the maneuver that bull-rushed him and did damage at the same time while giving us some hit points back to boot. Earned some cheers from the other players. Between that and her love of tripping as a tactic (she likes the mental image of knocking someone on their back and then just going hog wild on them with her weapon), it's reasonable to posit that she'll be playing a Crusader this time around...and I'm not about to knowingly take a step that overshadows my future wife by going Crusader+. I am 6'4", and our couch isn't that comfortable.
Divine Metamagic is obvious, though. I have the option available to me, so I intend to use it. Persistent is more likely rather than Quicken--even if I don't go as a melee brute, I can simply Persist one of the Mass Vigor spells and then nobody can ever complain about not having any hit points.
It's a busy build already, but could you slip in a level of Radiant Servant of (some appropriate god)?...
I like the roleplaying potential of a Bone Knight in a world teeming with (hostile) Undead...
Provided you can get armor back somehow, Cloistered is always good.
...have you considered some sort of Ur-priest based build, instead?
You know, I hadn't really looked at Radiant Servant. KotR gives the Sun domain at 3rd level and I won't be crying over having to take Extra Turning as a feat, so that means if I tossed Prestige Paladin out of the build (it has no incredible use if Ordained Champion isn't there) I'd look like this...
Cloistered Cleric 3/Church Inquisitor 1/Master of Radiance 3/Knight of the Raven 3/Radiant Servant 1/Master of Radiance 2/Knight of the Raven 7
Not only is that a full 20-level build, but I gain my weapon and armor proficiencies at the same time I gain fifth-level spells...which makes perfect timing for Operation: Whup The Undead to go online.
I love the way Bone Knight looks and feels thematically, but I'll let it rest for now. After all, there are rumors of Savage Tides in the future, and I know how that one ends. Or at least, how it WILL end--with a Bone Knight commanding his crew of the dead, sailing a black-sailed sloop down the River Styx to challenge Demogorgon for the throne of Demon Prince of the 88th Layer of the Abyss. That's not only thematic, but it's so metal it will be the cover of my Bard cohort's first album (and he will, naturally, be rocking a +1 Shocking Thundering Greataxe that grants a bonus to Perform (sick riffs)).
Compared to these two things, Ur-Priest no longer even registers on my "what to play" scale.
Are there other things I could include on what shall now be referred to as my "Blinded By The Light" build? Feats, items, or the like? I feel like this is going places.