I can't quite tell what you're asking here, is it our favorite EDC knife overall, our favorite EDC fixed blade knife, our favorite EDC pocket knife, or our favorite EDC fixed blade pocket knife, more specifically?
For fixed blade pocket knives I like the Morakniv Eldris a lot.
It's got a really thick sheath, which does detract a bit from it's pocketability, especially considering that my phone, keys and wallet already occupy that space in my left pocket and my EDC gun occupies that space in my right pocket. However, it's a solid and stumpy, hard working knife that I can rely on completely for almost anything I need a knife for. So, when wearing cargo shorts or jeans with extra large pockets, this is what I tend to carry, which is basically when not working.
I'm really falling back to where I started when I came here, caring more for budget, bang 4 buck knives than these overpriced super steel pieces. Honestly, I care way more for ease of sharpening than I do edge retention, and I think that the only intelligent stance to take.
As for an EDC fixed blade that isn't necessarily a pocket knife, I'd go for something a little larger, but doesn't exactly "stand out", because of comfort, when worn on the waist band. I usually wear my LW Seeker II. It's a cheap Chinese junker, just under $50, with a super thin spine (so not for heavy duty use like when camping), but as far as I can tell it's a solid piece in true VG-10 that is razor sharp and cuts like a dream and looks nice.
Now if it's my favorite EDC pocket knife you're asking about, not having to be a fixed blade, I love the Spyderco Manbug, either VG10 or ZDP-189, mine is in ZDP, but both are acceptable to me, as long as flat ground. It tucks away perfectly and easily into a fifth pocket, being absolutely unobtrusive and not at all bothersome or noticeable. I keep a short Paracord lanyard on it for quick access and it will perform any small, quick cutting need I might have with extreme ease. It's actually my go to, especially for work where wearing a knife with dress clothes just looks stupid.