How did I know the first answer would be P? Surprised anything else was suggested. It's well known that the phrase "baseball bat neck" originated in the 50's when, during a strike at the Louisville Slugger plant, the MLB used Fender P necks as bats. When the strike resolved, said bat/necks were fretted and installed on basses.
Seriously, any well built bass will hold up to normal playing with the usual basic maintenance. Once you start throwing it onto concrete, nothing's going to last long. They're just wood with a few metal bits screwed on. Except, of course, the aforementioned carbon fiber basses.
My Steinberger does look like it was used to pound railroad spikes, then dragged behind a bus for 3 world tours. I was amazed it still plays when I got it, but not only does it play, it plays well with very low (almost NO) action, and stays in tune for ages. I still wouldn't want to smash it onto something concrete though.
Edit: T-40 necks were briefly considered for use as baseball bats, but the players complained they were too thick to hold onto properly. I think Peavey made them by sawing telephone poles in half and cutting to the proper length.