I have used Country Rocks. They are a pretty good allrounder but i found the tread was really good at collecting little stones, flints, and thorns. Lots of tick-tick-tick cycling along and few punctures from the trapped items.
There is also an angle i could get to, when really leaning the bike over, where i could feel that sharp edge to the tread. Sometimes there was a bit of slip in the wet. They served me well though and they felt pretty good with a latex tube. Not too portly either.