Nyst was forester/savage.
Garm was forester/beastmaster.

I played both. I also played Gmrrst, Siden and lots of throwaways.

The top 10 is kind of irrelevant to this discussion, because
pretty much everyone there has insects (besides iklahn).

*Any* ranger build can be extremely deadly with insects, if player is skilled,
and for some combos *cough* even without that much skill

Nreisshe had a lot of things going for her, on top of insects.
The steaks + Lyristeon tattoo are amazing on any ranger.

I was lucky to get both, with Nyst, and I received them fairly late in the
character's life. I have no doubt that given 100 more hrs
with them, I would have killed more than Nreisshe, with a playerbase
that's a lot smaller. So, PK stats by themselves, seldom tell the whole truth,
and in some cases can be extremely misleading when comparing builds.

A good (neutral) way to go about that is to compare the builds in their stock
form. Do not assume leader, or tattoo or extra powers.

See my other response for more details.