Both dramas are Wuxia with stories relating to an assassin organization. Both have great cast too.

The story of both dramas relates to an assassin organization.

Both are Wuxia and Gong Jun is the male lead of two dramas. The two stories relating to a secretive assassin organization.

The two drama are directed by the same director. Although the stories of two dramas are different but the cinematography, costumes, visual are all beautiful and rather similar. The cast from the main leads to support roles of two dramas are all great and act well.

Both drama has similar type of male character who was born with a destiny beyond their expectations.

Both are Xianxia dramas and Ma Tianyu played in both dramas.

Both are fantasy dramas and have the same male lead who is Ma Tian Yu.

Both dramas relate to crimes investigation by detective male leads. They are both in the same dynasty as well.

Dong Fang Qing Cang in LBFAD and Ying Kong Shi in drama Ice Fantasy are both considered devil. However, it was their destinies since birth. They actually have a good heart and both LBFAD and Ying Kong Shi sacrificed themselves for their loved ones.

* Both dramas have same type of characters. Dong Fang Qing Cang - the Moon Supreme Lord - in 'Love Between Fairy and Devil' and Wen Kexing - Chief of Ghost Valley in 'Word of Honor' are very strong characters with pitiful childhood and destine to become the most evil in their world.
* Both dramas have great story, interesting plots, good acting, beautiful costumes and visual.

Both are Xianxia dramas with great romantic story, interesting plots, great acting and good CGI.

Both dramas have the same male lead who is Gong Jun.