I think this is a Sharks vs. Bees discussion. They say "you're more likely to be sting by a bee than be bitten by a shark"... The thing is, when you do get bitten by a shark, it's really bad news.
So on one hand my sister was put in the hospital by a drunk driver. But that's the only one I have ever seen in my 15 years of driving.
On the other hand I see cell phoners drifting and correcting at least twice a day. Though they may not cause the kid of accident a drunk would, they're freakin everywhere.