I've used both and have received greater, faster benefit from a chiropractor. That said, I've found zero quacks who are PTs and have found an abundance of quacks who are chiropractors. Finding a sane chiropractor can be challenging. Sadly, I find people are quick to judge the entire field of chiropractors by the quacks rather than the professionals who really are good at what they do. In fact, many "treatments" provided by PTs are modifications of what is taken from chiro-practitioners. Of course, they won't offer that.