After playing a few test games against a friend and getting to see some units on the table, I have made some changes. Here's what I have now.
This list is pretty elite but I really like not having units as it takes away the power of opponents who have invested in anti-infantry. I do have the Choir but that is pretty easy to protect, as is the Mechanik.
My basic strategy is to have a very bulky front line with a very hitty second wave. I am looking to lead with the Avatar and Guardian, with the Crusader and Pallies being wave two.
I like the Avatar and Guardian because I feel I really need an Arc Node, even with the range buff from the Hierophant. I want Harbringer back until things get a bit safer but the Node lets me drop her great buffs from safety. The Guardian and Avatar both have huge threat ranges because of Reach so that can cause a bit of caution in the opposition.
Crusader is just cheap and hits hard, but doesn't have as big a threat range because of the low speed and no Reach. Just there to help out a Jack in need or intercept another threat if my front liners are winning.
I really like the Paladin/Hierophant/Martyrdom combo and I feel like there is a lot I can do with Vilmon's stance. The Pallies make excellent pinning units against Heavy Infantry or Jacks/Beasts without Magic Weapons and it also seems possible to "charge block" if facing a faster opponent but letting the Pallie get charged, take no damage and move the Jack behind it into B2B. Slams don't KD and the Jack suffers no Collateral damage although I may be missing something with that hypothesis. Still awesome solos for a variety of reasons.
Choir is really important to deny shooting/Magic as most armies don't have both that can hurt Jacks badly, could drop the Mechanik and get a full Choir but I don't see the point with Harbringer.
I like the Covenant for beating armies that focus on KD since the point cost seems fine for that situational power. Sadly I can't take much advantage of the Continuous Fire as I have no Thresher or Ranged so maybe not 100% worth inclusion?
Mechanik, I had an extra point.