dodge > block when facing heavy hitters.

block = cheap way to push crushing off the table.  Technically, block =/= avoidance.  But it's a good way to mitigate damage.

You do need to have a fair amount of block value to say be good in mitigation though.

the mitigation you get from block scales different with different type of bosses.  Obviously, you get more mitigation from block as the boss hit softer. 

block is good for AE because soften the damage you take and give you a lot more threat.