I have a bunch It just depends on what I grab and where I'm going.
These are the ones I mainly rotate between:

DMT double sided butterfly stones fine to coarse
Spyderco medium grit 3" ceramic stick
Arkansas medium pocket stone


At home:

sharpmaker
Medium-Fine Arkansas stones
Japanese Water stones
Mill Bastard file

JYD#14 Do you need one, of course you do it's a knife and you like knives.....