Some good advice here but also alot of pure and simple b.s. and wives tales.
Just do your homework and you'll find a dog, Chessie or Lab that you'll be happy with. Either breed are outstanding dogs IMH0 if you do your part prior to purchasing and a little TLC and patience with training.
As far as Labs being #1 in dog bites , it does make sense being they are the #1 dog being registered and the overall popularity of the breed and the dogs that don't get registered. Don't get you knicker in a bunch , it's like saying a chevy or fordare prone to accidents. If you sell 3 million of them and they are involved in more accidents it's only logical. If you sold 1000 Mazzerati's and 999 were involved in accidents the chevy and ford would still come out way ahead.