I have been using Togen hooks for two years now. I use them in 90% of my flies.
I think that Kamasan are stronger, but they are more expensive.

I frankly don't know how to judge hooks in general, what to look at.
But I can say that they have never broken nor have I lost fish because of them, on the other hand my fishes are maybe not that big

Reg,
Thorarinn.