Having been a blacksmith and knife forger for several years, I can tell you that the knife is as personal to a man as the wife. Pick the style that looks best to you. Anything with a sharp edge that isn't too big will work if you use it correctly.
The best value on a "store bought" knife is the Schrade / Old Timer carbon steel. If money is no object, just look until one jumps out at you. Don't buy a cheapo from Pakistan or China and you'll be fine. I have more knives than you can shake a stick at, and I use my Dad's old Sharpfinger. Its about 40 years or so old I'm guessing, and will outlast me. I never keep one I make very long before someone talks me out of it.
Ben