I've a long love affair with Spyderco FRN-
The older 'Volcano' texture FRN of the Delica 3 was the real 'epiphany' for me- that an all plastic handle could be solid and grip yet sleek.
I'm super pleased this is still the go-to choice for the Salt range of today
The 'scallop' pattern on the Caly models is OK, but the current Bi-directional FRN of the Delicas (etc) is proper 'hand velcro'- if you manage to have one slip out of your mitt with this grip pattern, then you must be washing your hands with a mixture of Teflon and baby-oil
There's some outliers, though- the D'alarra and Native 3 range are hand-filling and comfortable but the full 3d sculpted FRN takes up a lot of pocket real estate and makes for a sticky draw from the pocket
The Centofante 3 & 4 make FRN go upmarket with the flat sand-texture and swoopy details but lack grip in my usage.
The only thing I'd say is (of the current range) the 'waffle print' flat-style you see on the UKPK FRN, Urban and Squeaks are something of a step backwards to me- but only because the Bi-directional FRN has spoiled me rotten
Warhammer 40000 is- basically- Lord Of The Rings on a cocktail of every drug known to man and genuine lunar dust, stuck in a blender with Alien, Mechwarrior, Dune, Starship Troopers, Fahrenheit 451 and Star Wars, bathed in blood, turned up to eleventy billion, set on fire, and catapulted off into space screaming "WAAAGH!" and waving a chainsaw sword- without the happy ending.