All solid points here, but one of the main ones is missing: Guardian of Esgaroth!

This card is bananas good with it. Let's him take advantage of his increased stats to quest and provides a boost to him.

Throw a Squire's Helm or Hauberk of Mail on him and now he quests for 3 for free!

This should be such a cinematic card but it's just hard to find to right use-case. When is it ever really a good time to play this?! The COMBAT phase restriction makes it a bit awkward. I guess the point of this is to avoid some big enemies or nasty engagement effects - if you have low enough threat - and then snipe them. The problem is that you need enough high attack heroes (Spear of the Mark helps). But generally you really only have 1 or maybe 2 dedicated attacking heroes. Of course, this could also be a way to get Éowyn to go berserk and clean up the staging.

Essentially this should be Hands Upon the Bow for Rohan's cavalry, but that card at least helps with a +1, can be a character, costs only 1 resource, and most importantly can be played in ANY ACTION WINDOW (and therefore helps you quest).

Forth Eorlingas! should be a charge cry for all Rohan characters, not just heroes. That could be a fun way to gamble on holding back your questing characters, forfeiting progress on the quest, and doing a good clean-up round of staging.

Let me just say, that boromir is a card that can go well with a lot of things, which I think is pretty cool. His ability is good when you have a deck that revolves around gondorian cards, and is also great for an intense attack deck so overall, a very good card. This is obviously one of the best cards in the game

Ok, I've recently found a great use for Mablung in my Lothíriel-Éomer deck: ringsdb.com

First, you select your characters for questing and this happens simultaneously: quest with Éomer and Lothíriel and then trigger three responses: first put Mablung into play via Lothíriel. Then trigger Mablung's response that moves an enemy that was engaged with you to the staging area. Finally, trigger Éomer's questing response. If you manage to play a few weapons on him, he will swing for 6-7. And +5 engagement cost often means that the enemy won't engage you back this round.

With Visionary Leadership and Steward of Gondor, these three characters will quest for 9, which definitely isn't bad.

Poor Óin . . . he's really been done a nasty. This is literally his only rendition and it sucks. It feels almost as if he starts with a handicap and you need to pass the 5 dwarf restriction just to get him back to normal.

He isn't the most prominent of Thorin's company, nor an important figure in LotR, but still.

Seems like it's the trend for the dwarf archetype: mediocre unique characters.