A really small battle:
Good side
Aragorn with armour
Legolas wih armour
Gimli
Evil side
8 Uruk-hai warriors with shield
2 Uruk-hai berserkers

Deployment
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U A B B U U U U U L WALL
U-----------------------------------------------
U G STAIRS
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Turn 1:Good priority
Gimli attacks the warrior in front of him. Aragorn attacks the Berserker on hig right. The two most right Uruks attack Legolas, the other Berserker along the three most near Urujs attacks Aragorn. Aragorn using one might kills one Uruk-hai and one Berserker. Gimli kills his enemy. Legolas kills one of his enemies.

Turn 2:Evil priority
One Uruk-hai attacks Legolas, one other Gimli and the rest enemies Aragorn. Aragorn kills one Uruk-hai and so does Gimli.

Turn 3:Good priority
Gimli attacks the two Uruk-hai at the left of Aragorn, Aragorn attacks the Berserker and Legolas the remaining Uruk-hai. Aragorn use one Might to finish the Berserker. Gimli use one might to win and finish his enemies, whil Legolas use one Might to wound the last enemy.

A small but nice scenario.

From the thread title I was imagining you magnetizing your bases and gaming vertically

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Talaan-u rûk-ir tor Urûk
Nauru-ir agh kragoru nûrsu grishûrz
Nork-ulu furtun agh goð
Mordor-ob bot-tuk

So you did play it in the then, and the Three Hunters had no problem despatching the Uruk-hai on the wall

1) Almost...
2) Yes... When I get free time I won't to see how further can they survive