I'm thinking for my Sergeants (which will be infantry):
1. Shadow Wolf Halberd (or some other polearm) for stopping cavalry in field battles.
2. Doom Mace (I don't have it unlocked yet but I think there's a new hammer that's almost as good) for close quarters, sieges, and prisoners.
3. Enhanced Noldor Shield
4. Jarids or Broadhead Throwing Spears for range, breaking shields, and burst damage.
I think that makes them useful in most situations and they'll be cheaper to field thanks to being infantry.
For the Knights (cavalry archers):
1. Noldor Composite Bow or Darkwood Bow (if it's even an option)
2. Noldor Arrows or Darkwood Arrows to match bow
3. Doom Mace (I don't have it unlocked yet but I think there's a new hammer that's almost as good) for close quarters, sieges, and prisoners.
4. Enhanced Noldor Shield
I basically want Clarion Call with prisoner-taking potential.
I'm open to suggestion and look forward to hearing your thoughts