Well, being an avid disliker of both ADW and LP, I can see why he would want stock. ADW looks... well... cheap. And LP has always had lag issues when loaded down with icons and widgets on the X... at least for me. The stock Gingerbread launcher is by far my favorite one. It's simple, clean, and doesn't lag down for anything.
To the OP, if those don't work then try HeLauncher. It's got a stock GB theme to it. I know that isn't quite what you want, as it's still a custom launcher, but if all the stock ones on the Market don't work, then that's the best alternative I can come up with.
I don't know why they aren't working, though... I could have sworn I had them running just fine.