I'm liking the new Kenda Excavators, they're like a nevegal on steroids really. Good mud shovelling, not up to the standard of a real mud tyre but you'd not expect that. Slight lack of side grip I think, they don't climb out of ruts too well but that's about the extent of their drawbacks. The 2.1 grips like a 2.35 Nevegal, but rolls faster and weighs less. All in all pretty nice.
I have a theory, myself, that on the trails I ride if I need a mud tyre, i should probably not ride that section at all- anything I can't ride on something like these, I reckon could do with being rested instead of plowed. But ymmv of course.