I hear tell that chemically-sharpened hooks tend to be sharper out of the box than the alternative. I also hear tell that the chemical process results in less damage/twiddling to the remaining material, making the point stronger and more reliable.

I don't have near enough experience to note any differences myself, and I can't even say for certain that I've used any hooks that weren't chemically sharpened. What I wrote above is just what I've heard and read from various sources. Your mileage may vary.