My first ever 3 hunters deck, it plays feels different from other decks I've used in recent memory, so I'm enjoying it a lot. I paired it with a Cirdan/Narya Noldor questing deck for good effect.
http://ringsdb.com/decklist/view/6462/three-hunters-and-a-palantir-1.0
You have many heroes who managed to block but too few way to boost their defense, don't you think? Since you want to play a steward of Gondor on Gimli, block with it for untap Legolas and so probably make it your main defenser (even more with the mount) I think that gondorian shield is better than dwarven shield. You can at least have less dwarven shield to put some gondorian shield, who can also fit to Aragorn.
About weapons I don't see why you play only 2 rivendel blade. It is your best weapon so put 3 of it. If you get to play it in multiplayer game bow of the galadhrims is also better than dagger. And since rivendell bow is pointless with only 1 player you probably want to play multiplayer ^^.
You're right, I should probably have the Gondorian Shield in there. I'm just so darned excited to play cards that I have never played before, and Dwarven Shield is one of them....
Definitely it's a multiplayer deck, it would not quest successfully in any scenario. Nearly all the decks I build are specialized for a multiplayer role.
The weapons -- I started looking for cards to cut, and it ended up being the weapons because there were 9 of them in total. I cut down to 6. There are 4 "primary" weapons (2 blade, 2 dagger) and 2 "secondary" weapons (2 bows). The Galadhrim's Bow was in there, but I removed it for the dagger so that there is a weapon that Aragorn can use. Otherwise there is only the Rivendell Bow, which doesn't boost his attack.
I use to be excited about dwarven shield too but at second tought it is not that good. I still play it with Gimli because I never plan to play steward on it but it never be very good so I slowly reduce the number in each deck so he may simply disappear from my decklists in a few time.