Lately I've been carrying a Victorinox Handyman in the woods:
http://www.swiss-knife.com/asp/detail.asp?lan=EN&code=1.3773&shop=SK
It's got a lot of tools, including scissors, pliers, wood and metal saws, but it's still smaller than the Champ.
I normally carry a Victorinox Hunter in my knapsack, as well, for slicing tasks (and because it has a larger saw than the Handyman).
The Hercules and the Work Champ look pretty good, too, though I think those models would be pretty bulky. Bear in mind that, along with the SAKs, I normally carry a Leatherman Crunch and a large folder (or a mid sized fixed blade), so I have most tool and cutting functions covered.
With regard to the Victorinox Mauser, I've have one since 1985, and it is a great knife. However, I would have prefered that one of the two blades (the drop point) be serrated, or, better yet, that the knife had scissors in place of one of the blades. Plus, a little niche for tweezers would be nice, too.