I think using Taken Out would be most appropriate for a Siren Song scenario or the like, rather than telekinetic maneuvering in a pitched combat. Having the target be under your power and vulnerable sounds more like a Taken Out than a combat Maneuver.

There's a little leeway there. A siren song drawing you closer, but leaving you able to act, as long as you stay close, could just be a Consequence or Maneouvre.

Are Deceit-based midcombat maneouvres not allowed automatically?

Ah, now that's an interesting one. Getting the chance to flee and choosing not to take it...

Just my opinion.  I like the smaller lesser court idea.  That you and many don't is awesome, we'll likely never game together.  If we do, you'll have to deal with it then, for now.  I accept your position. 

I will say that him beign a hunter and nothing more/nothing less makes him a little one sided, too black and white and in turn...boring.

Equally reasonable- though I should point out that the idea of "hunter" has a lot of sides to it. There's the big obvious chasy animal, there's the SUDDENLY TRAPDOOR SPIDER sort of ninja antics, there's the human side of it (honour and respect for the prey), there's hunting for food and hunting to prove yourself and hunting for the sheer joy of chasing when they run... Yeah, I think there's a lot there to play with.

As for his prey not being able to hurt him....  I call Bull$h1t.  Per system, theres a few things that can hurt anything.

#1 any item or creature with the power: all are equal under god.
#2 soulfire
#3 any other plot device power or supernatural heavyweight 
#4 any PC with a comparable refresh toa supernatural heavyweight, after all teh Dresden Files is all about exceptions and rarities or the novels would be boring.  There is no reason the main characters of a chronicle should be any different.

Fair- I was being rather figurative. I agree that the Huntsman/ Erlking's Knight needs a catch, I just don't think "opponent" (or at least what he sees as his opponent) is the way to go. Mostly I was basing this on how I see him from the books, and sort of coming from his point of view. He sees people as hunters or prey. He hunts prey. And it'd be really weird if he had a vulnerability to prey.

So actually, what I see as the Big Dichotomy here is (from a more objective view) Wild versus Technology. The Erlking is all about wildness, but humanity's tamed its world now- we don't hunt our food, we raise it to go meekly to the slaughterhouse, and to me, that's anathema to everything the Erlking's about. Coming from that point of view, I'd make his Catch either something technological (and this is why Iron could be a good one, even for the Knight- it's a symbol of Making Things), or a rather more conceptual vulnerability to He Who Has Tamed Me or Bound Me or whatever. It's a bit harder to implement, but it could be interesting- fighting the Huntsman becomes a struggle to maneouvre him into a position where you can get a rope around him...

A Sidhe will probably die if you stick 3' of aluminum through their guts.  It doesn't mean that aluminum serves as a catch, though.

My point. A Knight is no more vulnerable to iron than any other mortal if he has it as a catch. He's just less invulnerable.

Agreed, but the Knights shouldn't be vulnerable to iron.  A: they are mortal. 

And with it as a catch, they die if you stick three feet of metal through their guts!

... Oh wait.

 

I'd say it would. Finding and killing prey is archetypal predator behaviour, after all, and the Erlking's as much about predation as he is human hunters.

Wild Hunt. The name says it all.

Harry rings Warden Central on the phone at one point- I'd assume that a simple landline is sturdy enough for most wizards, and maybe Nevernever messengers for those who are too reclusive and/or old for that to work.