They both can sound very good. The tranny is a little simpler and more traditional, but it doesn't allow as much loading flexibility and is sometimes prone to pickup magnetic field hum. You'll have to make the call, sonically these items are in the same ballpark (PICCOLO and LUNDAHL).
Now if I were a great salesman, I'd say get the PICCOLO as it offers more system flexibility. It matches well with other phonostages and carts. You can also sell it later. It makes for a better long-term investment. Blah, blah, blah. But you don't want to hear that. So I just tell you reality, which is that they will both make good solutions. You'll be happy with either choice. It comes down to a personal preference. Some folks just don't like the tranny sound (audiogoners really rag on them). Me, I like iron. Although right now I'm running a PICCOLO in my system.
jh