I'm a scout pattern fan through and through. My first pocketknife was a scout. I
hate hate hate losing knives, so I pretty much always attach a lanyard to the bail on my scout. The traditional spear point is a great do-everything sort of blade shape, so it works well for me. And the cap lifter is a tool that I always need readily at hand, as I'm a big fan of IPA. Punches/awls are always a handy item, and a decent can opener can be used as a package opener in a pinch. If the scout happens to have a secondary blade, preferably a sheepsfoot, then I'm in hog heaven. There's not much you can't accomplish with both a spear and sheepsfoot. The standard scout knife at 3 5/8" long is a great size for my hand as well as my pocket.
I'm not overly picky about cover materials. But since my scouts are usually suspended into my back pocket, I tend to go for more robust scale materials, such as Delrin or Micarta. Delrin is pretty easy to come by, since it's sort of the defacto standard for modern scout knives, but Micarta is truly a rare commodity on the pattern that seems to need it most. If my scout has bone or wood covers, I most likely use a belt hanger to suspend the knife into my front pocket.
I mostly deal in US made knives, although some European models occasionally appeal to me. Camillus, IMHO, made the best modern scouts (for a variety of companies), so I'm also a very big Camillus fan. My family has a few knife collectors in it, and we all gravitate toward Camillus knives. I live in Upstate New York, and lived in Syracuse for years, so my proximity to Camillus made it a natural brand choice for me to collect. Although I must admit that I'm loving GEC these days. They haven't made my favorite pattern in my favorite size yet, but hope springs eternal. Their recent foray in scouts, notable the Texas Camp Knife and the Beer Scout, are both positively exceptional knives.
A scout fan can't be too picky when it comes to blade steel. Most all scout are made from 440 series stainless or simple carbon steels. So I just try to look for as hard a heat treatment as I can get my hands on. GEC does really nice work with their 1095. I've also managed to find some more exotic steels from Queen in D2 and ATS-34, and Camillis did to a run of 154CM for AG Russell.