I use a Helle Folkekniven. A detail description can be found on this site. You can see it in some pictures I took or a rimu spoon I started on a recent outing (still in progress).
For me its an ideal size, not too big and the with a solid handle so it still fits well in your hand. It seems to hold and edge extremely well, after a hard day of use (including 2hrs of hardwood whittling) its retained a shaving sharp edge.
Its unusual in that it is a tripe laminated stainless blade with a high carbon core to hold an edge sandwiched between 2 softer layers for strength. All the fancy details don't really matter, why I love this knife is because its comfortable to use and does what I need it to do....cut things well!
I use it for larger tasks (such as chopping a larger branch) by using it with a baton.
One downside of the stainless blade is that it wont throw a spark with a fragment of flint that I have. It probably would with a swedish firesteel though.