I'd like to see a build of the warblade alongside the fighter to be sure of that (after all, by 4th level a fighter would have a total of 5 feats, a warblade 3, and the warblade couldn't have specialisation by 4th level, unlike a fighter), but they certainly do seem like a fairly strong class.
I do have a question about how warblades recover their expended, readied maneuvers though. The excerpt says:
You begin an encounter with all your readied maneuvers unexpended, regardless of how many times you might have already used them since you chose them. When you initiate a maneuver, you expend it for the current encounter, so each of your readied maneuvers can be used once per encounter (until you recover them, as described below).
You can recover all expended maneuvers with a single swift action, which must be immediately followed in the same round with a melee attack or using a standard action to do nothing else in the round (such as executing a quick, harmless flourish with your weapon). You cannot initiate a maneuver or change your stance while you are recovering your expended maneuvers, but you can remain in a stance in which you began your turn.
So does this mean that in the middle of an "encounter" (however you define that) a warblade can recover all expended maneuvers with a swift action followed by an attack? Does this have to be a single attack, or can it be a full attack? Or are they still limited to once per "encounter" (again, however you define that - hopefully the book does)?