The comparison between Shusui and Enma in terms of which sword is better is subjective and can depend on various factors, including personal preference and the specific circumstances of their use.

Shusui is a renowned black-bladed sword that was originally wielded by Ryuma, a legendary samurai. It is a highly revered weapon in the Wano Country, known for its exceptional strength and cutting power. Shusui has been shown to be capable of inflicting significant damage and is considered one of the strongest swords in the "One Piece" world.

On the other hand, Enma is a unique and powerful sword that Roronoa Zoro obtains during the Wano Country arc. Enma is a cursed sword with incredible cutting abilities and the potential to draw out the full potential of a swordsman's Haki. While it possesses a curse that drains the Haki and energy of its wielder, it also offers great power and potential for growth.

In terms of raw power and cutting ability, Shusui is widely regarded as a formidable sword. However, Enma is unique in its ability to enhance a user's Haki and potentially unlock even greater power. The curse associated with Enma can be a challenge to overcome, but it also presents an opportunity for Zoro to push his limits and further develop his skills.

Ultimately, the judgment of which sword is better depends on the context and the individual's preference. Both Shusui and Enma are exceptional swords with their own strengths and characteristics, and their value may be determined by the specific abilities and growth of the wielder.