I'll tell you my story with both...
I first bought the Husqvarna hatchet and enjoyed it but found, after reading multiple posts on this and other forums, that quality was hit and miss depending on the "batch". Mine was misshapen, had pits in the head, the grain on the haft was horrible, and the head started coming off after light use. Now, I'm not speaking for all of them, as I've seen some amazing ones on the forums that look like Gransfors Bruks quality (at least in looks and haft quality anyway).
A month ago, I got a Trail Hawk and love it. It's not as good a chopper or splitter as a hatchet but it can still be a good tool around the campsite. It can require some customization and TLC for it to really shine (i.e. strip the paint, lose the set pin, convex the edge, etc). Since I've had it, it has become a very versatile tool that I find new uses for every day.
My thoughts are if you're going with the Husqvarna hatchet, go to a store that carries them and look at a whole batch before you choose; DON'T order it online. The reason for this is Husqvarna gets theirs from different forges (including Wetterlings [I think]; sometimes the "B" product). If you get a good one, it should last a lifetime as a camping friend. The Trail Hawk on the other hand is more of a "fun" tool. It's something fun to mod, customize (especially hafts), throw and whittle wood but it's great to hammer stakes and chop small limbs (3"-4") for the fire. It also batons well, but you have to torque it to split the wood due to the narrow bit. It will become such a personable tool that you'll want to carry it everywhere; Doesn't hurt that it's extremely light either.
BTW, you can get a Trail Hawk on Amazon for $25 shipped and a Husq for only $35. Why not get both?

