mattcalifornia

I have a pair of 44 Snoqualmies on my extra set of wheels (not with the endurance casing). They are good on the road and hard packed flat dirt. They are not good on steep dirt (up or down) or loose dirt. I haven't tried them in mud, but I would think they would be terrible. They have almost no tread at all. Obviously, choosing a do-it-all tire depends entirely on your riding conditions. My main tires are 47mm WTB Venture 650b. They are much knobbier than the Snoqualmies and fantastic on all types of dirt. Obviously, they aren't nearly as smooth as the RHs on pavement, but they roll surprisingly fast. If I were choosing one tire for everything, I'd probably pick something closer to the WTB Venture, but maybe slightly narrower - like a 42 or 44. I think the optimum all-around tire is pretty slick in the center with some amount of knobs on the edges.

EDIT: I should say that even the Ventures aren't knobby enough for some of the rides I've done. I bought a set of knobbier Schwalbes (Thunder Burt 2.1" and Rocket Ron2.25") that I may mount the next time I know I"m going to be doing a lot of riding in challenging conditions (more like MTB riding).