I use my fillets & slicers most often.Reason being,is my wife does most of the prep for most meals,so chopping veggies,etc,is done more by her.
I however,do most all the grilling & carving of the poultry & meat,so its mostly the slicing knives that I use
When I prepare dishes completely ,I freakin' break out alotta knives.I'll peel onions with one,chop with another,etc...The'll be knives everywhere.One time,I was cutting outer leaves off a head of cauliflower,switched knives in mid project,when I swooped the discarded stuff into the waste basket,along with the stuff went an AG Russell folding Hocho.I looked high n low,only to realize ,looking back,what had happened.Funny thing,in AG's original write up in his catalogue for that knife,he states,"Don't set this knife down,someone will swipe it" I was looking at people funny around here 'til I figured out what I did
Sorry for the long wind
-Vince