I've got a #6, a #8 and a #10.
The #10 feels really good in the hand - I find its a great knife for laid back bushcrafting type stuff around camp.
The #8 is a good all-rounder - not too big, not too small. I edc a Delica but on the very odd occasion when I feel like something more rustic I go for the #8.
The #6 is for use around the sheeple - small and traditional looking, it scares only the very sheepiest of sheeple. Good thing is it still locks up like the larger models, whereas #5 and down are slipjoints.