Lenovo ThinkPads are probably the most durable laptop you can buy unless you are specifically looking for those specially ruggerized laptops that are meant to be taken into desert, jungle or any extreme environment. Those laptops are neither inexpensive or light to carry around.
ThinkPad T series are generally designed to survive a 30MPH impact. It won't look pretty, but the laptop will still function so that you can salvage the data on the hard drive.
But let's say if there are no lenovo on sale, what other brands should I consider? or let me put it this way, what brands should I not consider?