I've recently started looking for a folding pocket knife to replace the piece of crap I've been carrying. I really prefer the tanto style for sharpening and aesthetic reasons, and I'd like some advice on which to choose. Ideally, I'd like one with a blade length of 4-5 inches (not more than that), and I need it to hold an edge. It doesn't have to stand up to prying or torquing use that much, so it can be harder rather than tougher. I'm thinking S30V or BG-42 steel for the blade, but I'm open to suggestions. Any ideas?