Just for fun, here's a modified Attack Matrix I put together to distinguish between Parries and Dodges. Dodges are basically Opposed Rolls, whilst Parries follow (more or less) the old RQ3 paradigm of blocking a certain amount of damage.
Note that this is different from standard BRP - the modified Matrix means that when you parry, the parrying weapon or shield will absorb some of the attack damage, but some might get through. It avoids the "can I parry a Brontosaur" problem.
The Matrix looks horribly complicated, but isn't!