I can't answer that question. It depends on the day. The BP FF Tourbillon is a freaking cool watch, my heart probably would go Lange (Turbograph, 31 days or DS) and there is something ( like a mermaid call ) that tells me to go AP Concept.
I think I already "passed" the owning process, in my case it's more about the joy of "play" or admire them. Of course I would love to own many of them but, no money, no funny.
Sorry but, no answer.
Cheers!
Vte