If you want a reference, go find the shield block and crits thread on The Elitist Jerks forum. There you will see screenies and the data. It goes for about 8 pages.
While you are there, read the combat mechanics post. There you will see that the game has a hierarchy of outcomes, where if you increase the chance of something higher up on the table, something lower down on the table gets pushed off and wont occur. Specfically for shield block, if you go into defensive stance and hit Shield Block, you can shove their crit rate off the table. No crits equals less damage and little rage, which slows down the whole MS thing for them. Since they use slow 2h weapons, your shield block will work great.
I am not sure how this works in PvP v. PvE, but when I deul 2h warriors, they complain about a lack of rage when I shield block. It is not nearly as effective in PvP as it is in PvE.
While you are there, read the combat mechanics post. There you will see that the game has a hierarchy of outcomes, where if you increase the chance of something higher up on the table, something lower down on the table gets pushed off and wont occur. Specfically for shield block, if you go into defensive stance and hit Shield Block, you can shove their crit rate off the table. No crits equals less damage and little rage, which slows down the whole MS thing for them. Since they use slow 2h weapons, your shield block will work great.
I am not sure how this works in PvP v. PvE, but when I deul 2h warriors, they complain about a lack of rage when I shield block. It is not nearly as effective in PvP as it is in PvE.
Creator of the Barbarian variant