Like Rebecca, I generally don't get bothered by kids, but by their parents.
Kids are kids and will act as such. Now, I don't tolerate bad manners and rudeness from children, but that also goes back to what the parents have taught them.
Let's face it, you're in WDW and you go KNOWING that there will be a ton of kids there, so you need to take that into consideration. Tripping over them, or hearing a crying child IS going to happen! Period.
If you are looking for a break from kids, then choose a kid free zone like V and A, or a spa...but everywhere else is pretty much fair game.
I just wish everyone's kids were as well behaved as Tracy's and mine...