Azulongmon

Azulongmon is the guardian of the Eastern part of the Digiworld.  The Season 2 Digidestineds met him when BlackWarGreymon tried to destroy the Destiny Stones.  He gave one of his twelve digicores to help Paildramon Digivolve.   Azulongmon also met the Tamers and trusted them more than the other DigiGods.  He is a under standing wise old digimon.  He is the weakest of the gods because he has less digicores. 

Azulongmon's attacks are Blue Lightning and Wind Electricity.

Zhuqiaomon

Zhuqiaomon is the guardian of the Southern part of the Digital World.  He sent the Devas to the real world to hunt down the catalyst and bring him back to the Digi World, along with orders to destroy anything in their way.  He hates all humans and doesn't trust them much.  When the Tamers showed him how humans and digimon could live and work together, he became a little more trusting and began to understand them.  He is the second most powerful of the gods. 

Zhuqiaomon's attack is Crimson Flame.  (I think.)

Baihumon

Baihumon is the Guardian of the Western part of the Digital World.  He tried to fight the D-Reaper alone in Season 3 but got beat up really bad.  Baihumon is the strongest of the Four Gaudians but isn't a main digimon in any of the episodes.

Baihumon's attacks are Vajra and Iron Claws.

Ebonwumon

Ebonwumon is the Guardian of the Northern part of the Digital World.  He is the oldest of the four gods but the second weakest.  Ebonwumon isn't seen to often in the sires but he is really wise and a little funny.  (Irish Accent.)

Ebonwumon's attacks are Phantom Mist and Black Hail.