a nod for the Improved Initiative. For the "only help on the first round" folks, consider that the first move on the first round is the only chance your scout may get to flee back to the protection of the group before being encircled by enemies...
For baseball fans, consider this: Why are your really good batters in the #1 thru #4 slots. Because they go first, and thus will reliably go more often over multiple encounters (games).
Thus, do you want the fighter to get that lick in on the last standing bad guy *before* or *after* he deals the blow that crushes your cleric or mage into the dust?
However, I'll say that my favorite feat is still Dodge. Yep, I probably play a lot lower level based games than many of you. But when you are level 1 thru level 4 or so, that extra +1 AC against the guy who is trying to remove your feeble life is very, very important. And since all the high level characters were once low level characters...
John