Is the THF chain of feats ever worth it? It seems to me that most of the time, your primary focus is damaging one monster at a time. The times when your glancing blows would be enough to kill multiple monsters usually doesn't seem to last past level 6 or 7 (at least from my experience). Maybe I just don't have enough experience with these feats.
But I wonder, would a melee be better served with other feats? The reason I ask is because I just brought my q-staff focused monk to level 15 and it seems like this chain might be appropriate. However, I just can't help but feel the glancing blow damage will be inconsequential and I'd be better off picking up either more toughness feats or the +2 to saves feats. Not that either particularly need improvement, but more is better. Perhaps the same argument can be made about damage.
Anyways, I'm just having a hard time justifying spending 3 feats for (what seems to me as) a minimal bonus to damage to targets other than what I'm currently fighting.