A few things I think I should point out:
1) There's almost no point where an OA2-4 weapon is a good idea for Warrior due to their high Double Attack rate.
2) Warrior is a strong DD, but it comes with a big tradeoff. We may be marginally stronger than other DDs, but all our abilities that allow us to be so strong (Berserk, Hasso, Retaliation) either increase damage taken or do nothing to lower it. We don't do damage when we're dead.