Joel has the BFG Krawlers? how do they perform in mud? i've read they were mostly designed for rocks, and I too perfer to bypass the mud holes, but sometimes there is no way around.
I would say the krawlers perform just about the same as Toyo's on mud. You need to run them at very low, 5-8psi to get the best traction as they really suck anything above 10psi. My krawlers are also sipped, so they perform exceptionally well on snow and ice.
Surprisingly, they have worn very well, just over 5years, I would guess they are about 75%. Oh and don't feel too bad Dom, my 35's actually stand taller then a 37 Irok's, and slightly smaller then 38 Toyo.
Regardless of the tire, it's also important to understand how your tire will perform under different terrain/condition. Ie, on snow covered hills, my tires will actually gain more traction if I let off on the throttle and let the lugs/sipes bite. On muddy sections, I'll stay closer to one side so my side walls assist forward momentum.