Particle_Man
Explorer
A defensive tank's main weakness is the ability of monsters to ignore him and go for the squishier members of the party. Thus you will need either something to make monsters attack you (and here the Knight's ability really shines, although there are a few things you can do with the Goad feat or the Crusader stances as well) or get in the monster's face (this is where the movement abilities work well).
Personally, I am a fan of the Knight. If you can take other non-core stuff at higher levels while still a knight, you can snap up some maneuvers from Bo9S, as noted above, as well.
Personally, I am a fan of the Knight. If you can take other non-core stuff at higher levels while still a knight, you can snap up some maneuvers from Bo9S, as noted above, as well.