best 30" or 31" AT tires

[imjakeD]

Ok, I'm looking for a set of AT tires that can perform well in the mud. I'm wondering if anyone here has had better luck with one tire over another. The kumho and bfgoodrich tires are my first two options. Any input will be much appreciated. By the way, I will be on the road about 70% and the rest off the road. Thanks.