Without prejudice and with due consideration for the big reveal later in 2009, the gut feeling is that it "may" be better from a slimness aspect.
I like and own A.Lange & Sohne watches but some of them are getting to tuna-can size
The family-design feature of FP Journe is slim proportioned cases.
Of course, the Vagabondage 'rules' are different........
Regards, MTF