Right now it is the 59 Fatboy, but that may change.
Like Rich, I seem to prefer the one I'm currently using, although they are all English. Right now that is a Gillette #58 with a Euro Gillette blade. Hard to decide, but the #16 is the overall leader for me (until something better comes along).
Dan, I don't have my light box set up to take decent photos of my razors right now. There maybe some pix in the collectors corner of a #58 and #16. I'm positive there are threads with photos of the #16, not so sure about the #58. The #16 looks like the English Barber pole Aristocrat #66 except the bottom plate is flat while the #66 has the diamond shaped plate. The #58 looks like a double ring HD Rocket with a President handle, except the TTO has two rings and a closed bottom like the #66, and of course the gap.
if I can find a Brit that has the same head geometry, weight and overall dimensions of a #66 or #16, without the price tag that those razors carry, I'll be quite happy. It looks to me like a #58 or HD Rocket may fit the bill.