All of the spec choices are good, honestly. It's been a gradual process of years of balancing but there isn't one I wouldn't pick now. It all depends on what you want.

The helpfile on warrior specializations lays out a lot of it. Sword, since you mentioned it, really excels in tanking / avoiding damage well without giving up a lot of offense or number of attacks. What sword isn't good at is utility -- if pure attacks/damage aren't the answer, sword doesn't have a lot else. Sword also doesn't provide you with command denial options beyond those that are part of the warrior class. In all respects but these two, it's great.