All things being equal, Kyle. He'd jump to a big lead on the restart and hold off Dale. If Dale got to his bumper, no question Kyle would get pushed around. I don't think Dale would get there in 10 laps....all things being equal.
And as much as I despise him and his "it's all me, no credit due to anyone else unless I run bad" attitude, Kyle can't be called dirty. In fact, he's probably one of the cleanest. He isn't going to give you many breaks if you block, but I can't think of a time he intentionally wrecked someone for no reason other than Hornaday.