Big fan of small knives here. I don't like EDC'ing anything with a blade over 3.5" or a weight over 3 ounces. I have a few large knives (Ka-Bar, CS Spartan, CS Ti-Lite), but they never get real pocket time.
For a locking/modern knife, having a four finger handle is important (I wear XL gloves), so I don't usually go for knives with blades less than a dash under 3", since smaller ones end up with really short handles. The Small Seb's handle was too short for me.
Now for traditionals, I like em even smaller. The biggest Traditional I carry is a Rough Rider Barlow with a 2.5" Clip Blade, and I normally go for my Peanut or Tiny Toothpick. I should have a Sway Back Jack soon, which is another small knife. I find stockmans, trappers, and even a dogleg jack too large for a traditional.
I think a big part of the reason I like smaller knives, is because I carry a lot of EDC items. This has tended to make me carry small things when I can. I use a Countycomm Split Pea lighter, a tiny Egear flashlight, a Fisher Bullet Space pen, and a small traditional everywhere I go, and often add in a Doug Ritter Mini-grip, or BM 13960 Osborne. Don't usually have much room for a large knife.
As an aside, for some reason I like huge wallets...just ordered a Saddleback Large bi-fold.