[kaev]

The most important agro management tools of the warrior are the player's social skills. Make friends with people who aren't idiots. Group with them whenever possible.

In a good group, any tank works well but a warrior (usually) lets you push harder.

In a poor group, a knight tank can often keep things rolling despite the incompetence of the others while a warrior is just marking time until the horrible CR.

Most groups will fall in between. If your group is leaning to the bad and the other players are too busy passing the blame around (or mucking about on facebook, or whatever) to try to make it work better, leave it and make a better one.