If you want to go cheap, then there's two options: Fiskars hatchet or Ka-Bar Large Heavy Bowie, depending on whether you want a hatchet or a large knife.
If you can afford spending about a 100 bucks or so, then going with a Ranger Knives RD9 is never a bad idea, especially if you intend to really beat on the knife. My RD9 has been through hell in the couple of months I've had it here, chopping, prying and batoning through more or less completely frozen wood, poking some holes in the ice and even some throwing. No problems whatsoever. Justin has great customer service, and if you want your knife customized a little (or a lot), he'll fix you up for very reasonable prices. Pretty much the only downsides to a Ranger that I can think of are the fact that you won't find them in stock at the local cutlery retailer and that the fit and finish isn't always exactly perfect (but then, for a knife that's meant to be a user, I'm not entirely sure why it should matter that much).
. I just ordered it, I will post when it comes in.
