My favorite is Undead and NE (Usually I use Undead)
As Undead :
I calmly summon Altar,Ziggurat,andCrypt. Then I summon a Lich, lvl up until lvl 4, then rush up the techtree. Attack the enemy with 10 Necro (Master, with autocast Raise Dead), 10 Banshee (Master), 5 Abomination, 2 Frost Wyrm (With Freezing Breath) a CL and a Dk.
Use the Abomination to tank, use Banshee's Possession to possess some powerfull unit, Necro to raise dead them, Frost Wyrm to destroy the building, Lich Froze and Destroy them, CL and DK to Tank.
As NE:
I created a moonwell, ancient of War and Altar,then rush the techtree. Use DH with 5 Archer until Lvl 4. Attack the Enemy with 10 Druid of Claw (Bear Form), 10 Mountain giant, A DH, a Priestess of the Moon, and a Keeper of Grove.
Use Mountain Giant to tank with taunt, Destroy all the building when they busy with the mountain giant.