Anyway my choices are: 1)AP 2) PATEK 3)IWC I prefer AP to PATEK only because it was the first luxury watch in steel so it really represents a milestone. Design wise both are beautiful in their own way. Best.
The IWC for me as it appears to be the least commonly seen, which matches with the probability of my being stuck on a deserted island with any one of them!
Technically the IWC is superiorto the two others. The 8541b is superior to the AP 2120 based on the jlc 920 because of the pellaton winding system, finish wise perhaps less nicer than the patek but much more resistant to magnetism and the value of the rar...