Its funny how fav's form, new knives and expense for me doesn't make it a Fav, usually, lol.
I like 4 inch slicer folders the best. My Gale Bradley Spyderco, if it had a 4 inch blade, it would be my Fav, but it's edged out so slightly by a 710 in D2(always on the look out for a M390 version. The 710 is just under 4 inches, and does OK in food prep, and makes a good EDC for me, it's on the cheaper end, so I it's easy to buy spares, and give as gifts if I miss something!
My ZT0777 M390 is getting pocket time, I sure would love a 4 inch version,lol.
Spyde Mi's, very close to the top, in time more great steels will pop out, they are great to add to a collection!