This is an interesting question.
1) Boker Exskellimoor II
This is my only EDC. I chose this after lots of looking for two or three main reasons. First, its under 3in of blade length and has no thumb stud/hole (although it can technically be opened with one hand, it takes practice). This means its legal for all cities within a few hundred miles of here, so I can't head out for lunch with the co-workers and end up somewhere what what is in my pocket is illegal. Second, it is fairly non-threatening. Its got a wood handle, and a blade shape that doesn't make people nervous, which works great for my office environment. And finally, its cheap enough I won't cry if I loose it, and has a pocket clip so it can stay out of the way in my RR pocket. Its been my only EDC blade for... 2 - 3 years now, and I'm still quite happy with it. If I did make any changes, it would actually be for the blade thickness, as for what I use it for, I find its a touch thick.
2) Opinel #6 carbon
I have fake front teeth (courtesy of a speedboat incident at age 13), and the only thing the dentist told me when I got them was to "never eat apples without cutting them, because your teeth might pop out with the bite". I've been following that advice religiously for just about 15 years now, and as such I always cut my apples (gives a good story for me to tell co-workers "why" I carry a knife). So far, the Opinel is by far the best apple slicer I have. Again, I work in a big tech company, so the #6 is small enough not to get funny looks while I eat my apples. Plus, its easy to sharpen up to scary sharp levels, and I love the apple patina its developed.
3) Mora Clipper
Got this on a whim when I very first got into knives after hearing how good they were. I got it the same time I got one other very highly rated knife, and now a few years later... the Mora is the one I reach for when I go into the outdoors. That, and the fact that it cuts wood like a demon, sharpens up easily, and cost what... $8? Easy choice. I do sometimes wish the handle was a bit fuller though. That would make the longer carving/feathersticking sessions a bit more comfortable.
4) Becker BK9
Won this one in a contest here, and its been my other main outdoors blade since then. It chops great (although I don't chop much, I bring a folding saw), batons through anything I'd ever reasonably need to split, and still is easy enough to featherstick and do other smallish tasks with pretty reasonable comfort. Mines one of the older roll stamped ones, and its been stripped, and has a great patina. I added red handle liners to make the handle larger, and filled in the stampings with red crayon. Its quite the looker. Also, 1095CV is actually much more rust-resistant than I originally thought (particularly compared to my SK5 war sward, opinel, or svords L6), and the edge retention is quite serviceable. And finally, the handle on the full sized beckers are super comfy. I've used my BK9 for literal hours straight (cleaning up fallen trees at my parents cabins), and no blisters. So all of these things make it my most used large fixed blade by far.
5) Alox Farmer
This last choice was hard, as I had a few vying for the spot in my mind (peasant and peasant mini come to mind), but the farmer takes the cake because it simply is so useful. Its one of the knives I take camping (small saw, sharp and useful blade length, and I feel comfortable handing it to someone else for random camp tasks. And yes, for those keeping track that means I take a BK9 for wood breakdown, a mora for feathersticks/whittling, and the sak). It also fits in quite well at the office, or at church. The tools are quite handy, and so its overall versatility that makes this one of the most reached for knives that I own.