I voted full size Statesman as my favorite. Fitted with one of Lou's nibs it writes as good or better than any pen I've written with, and is much classier looking than the gentleman's version.
I voted other as well. But my favorite "high end" FP is kitless. For kit pens, I'd have to say the newly dressed up El Grande (is it Cambridge?). I love the look of the Lotus, but prefer the feel of the El Grande. But that's just me.