It depends on where you tune your guitar. If you like to tune down to C or B like Leadbelly, a really big bodied, ladder-braced instrument like the old Stellas & Harmonys' is what you're looking for. Maybe a '60's Gibson B-45-12. The Guilds are nice too. Of course those last two(and Martins, D-12-20) sound real; good with heavier strings tuned down to D. My personal preference is for the real low tunings.

Mark Ross