I'm biased but Snakewood is my favorite and, to my eyes, more beautiful than any other.
It ranks second on the Janka hardness scale only to Lignum Vitae.
It's very heavy and adds weight to your bow which I like for stability.
Here's a pic of my Snakewood bow Dale Dye built for me.
The last Snakewood bowhe will ever build as it's hard to work with.
Sag.