Can you help me to decide which army is best? Also just saying, i want the army to be able to beat rivendel/elves, iron hill, gondor and rohan at least. Elves and rohan will use hit and run strategies so i fear that kind of thing. If you have any other monster suggestions feel free to tell, but basically i would like to have at least 1 other monster than balrog. Any ideas suggestions are welcome. Thank you a lot for help!

Depths of Moria 800p
Balrog
2 cavetrolls with hammers
2 captains
40 goblins (14 bow, 14 shield, 12 spear)
Overall 780p 45 units 4 might

or

Depths of Moria 800p
Balrog
1 cavetroll with hammer
2 captains
1 blackshield shaman
47 goblins (16 bow, 16 shield, 15 spear)
Overall 785p 52 units 5 might

or

Depths of Moria 800p
Balrog
1 cavetroll with hammer
3 captains
53 goblins (18 bow, 18 shield, 17 spear)
Overall 800p 58 units 6 might

or

Moria 800p
Balrog
Cave Drake
2 captains
46 goblins (15 bow, 16 shield, 15 spear)
Overall 800p 50 units 5 might