You can argue that there are best drivers. Or best irons. But with putters, it's all about individual feel. With all the new putter technology, most people can putt just as well with a new, shiny, putter as they can with a circa 1973 putter they found in their garage. All that matters is that it feels right to you.
That said, most people putt better for about a month after buying a new putter. Every putter feels different, and the change in feel is enough to get your attention. Increased feel=Lights out!
