I like Freebooter 10/Barb 10 on Amiri since she already has a Barb level and I’ve usually given Ekun 8 Sacred Huntmaster levels for Domain abilities and sharing Feats with Ekun.
The one time I tested pure Ranger was on Ekun in that pic and he just destroyed everything. Improved Quarry as a Free Action resolves immediately (unlike clunky Swift/Move Actions). It’s just straight up +4 to hit, nothing to do with Crit confirmation.
It’s even better modded since you continue to get Combat Style Feats at 14 and 18. Sneaks are chip damage at that point. If you want Sneaks you get full Vitals with nice duration at high level Ranger.
I'm not sure about that - if you look at the description of Quarry it says "all threats are automatically confirmed". But you still have to make the threat. If I was building a crit character, I'd go for two-handed fighter and wait for level 19 devestating blow where you make a single attack that gives you a critical hit. I'm assuming that means a scythe character gets a crit + another multiplier at level 20?.
Or level 4 as a Sword Saint for perfect critical and level 16 as a barbarian for the lethal stance line that gives you another - so does that stacks for x2 multipliers?. Just pick a 18-20 weapon...
But anyway, I initially said the Ranger was a weak class for me, but you said it was one of the strongest in the game.