In terms of overall quality and versatility, Ebony is generally considered the superior choice among Ebony, Green Sandalwood, and Purple檀Wood. Ebony is renowned for its exceptional hardness, durability, and rich dark color, making it highly sought after for furniture, musical instruments, and decorative items. Green Sandalwood and Purple檀Wood, while also valuable, have certain limitations that make Ebony the more superior option.

Ebony is the hardest wood species in the world, with a Janka hardness rating of 3,620 pounds per square inch (psi). This exceptional hardness makes it highly resistant to wear and tear, making it ideal for long-lasting furniture and musical instruments. Additionally, Ebony's dense grain structure and tight wood fibers contribute to its durability, ensuring that it maintains its structural integrity over time.

In contrast, Green Sandalwood has a Janka hardness rating of approximately 1,150 psi, which is significantly lower than Ebony. This lower hardness makes Green Sandalwood more susceptible to scratches and dents, which can compromise its aesthetic appeal and longevity. Purple檀Wood, on the other hand, has a Janka hardness rating of around 1,200 psi, which is also lower than Ebony. This lower hardness can lead to increased wear and tear, further diminishing the wood's overall quality.

Furthermore, Ebony's rich dark color and lustrous finish are highly prized in the woodworking industry. Its dark color is consistent and does not fade over time, making it an excellent choice for high-end furniture and decorative items. Green Sandalwood and Purple檀Wood, while also having attractive colors, may not offer the same level of color consistency and depth as Ebony.

In terms of sustainability, Ebony is a highly regulated wood due to its endangered status. This has led to the development of alternative materials and practices that can mimic Ebony's properties without the environmental impact. Green Sandalwood and Purple檀Wood are also endangered species, but they are less regulated than Ebony. This makes Ebony the more sustainable option, as it encourages the development of sustainable practices and alternatives.

In conclusion, Ebony is the better choice among Ebony, Green Sandalwood, and Purple檀Wood due to its exceptional hardness, durability, rich color, and sustainability efforts. While Green Sandalwood and Purple檀Wood have their own unique qualities, they do not match the overall quality and versatility of Ebony.