With all who have said to follow your heart. It's a cliche, but it's true, and often has to be experienced once before learning.
I too followed the temptation to chase the icons, getting a Lange 1 mp and a first generation Datograph. I eventually sold both, and now have a first generation 1815 Chronograph, which was what I was drawn to in the first place due to its purity of design and immense wearability. And now I couldn't be happier.
Best of luck in your decision!