If the ground is reasonably dry - roclite 315 (or recent equivalent) all the way round. Decent cushioning and reasonable grip. Not the best on greasy mud tho.
Otherwise mudclaws - but do not expect to get more than a couple of months out of a pair. As soon as you start boulder hopping on them, the studs disintegrate very quickly. Very little protection on the instep - this is where I picked up bruising.
A good fit is very important - if your feet slide around inside the shoe, then the insoles are more prone to moving, your toes get pushed hard into the front of the shoe in a decent, and there is poor lateral stability if coming down sideways (jessie style).
I have also found that the shoes stretch when wet - this means either starting a short race with tight laces, or stopping to adjust en route. I prefer to run with wet feet - far less friction and blisters.